A rehabilitation chair

Abstract

The application provides a rehabilitation chair. The rehabilitation chair comprises a seat body, a plurality of movable components, a plurality of crank slider mechanisms and a driving mechanism. The plurality of movable components are movably arranged on the seat body along the up-down direction. The plurality of movable components comprise a left armrest, a right armrest, a left footrest and a right footrest. The plurality of crank slider mechanisms are arranged on the seat body. The crank slider mechanisms correspond to the movable components one by one. The movable components are connected to the sliders of the crank slider mechanisms. The driving mechanism is arranged on the seat body. The driving mechanism is used to drive the cranks of the plurality of crank slider mechanisms to rotate, so as to realize the synchronous rising or falling of the left armrest and the right footrest, and the synchronous rising or falling of the right armrest and the left footrest. When the left armrest and the right footrest are located at the upper limit position, the right armrest and the left footrest are located at the lower limit position. When the left armrest and the right footrest are located at the lower limit position, the right armrest and the left footrest are located at the upper limit position. The rehabilitation chair can assist patients with limb disabilities to exercise limbs and reduce the risk of muscle atrophy.

Description

Technical Field

[0001] This application relates to the field of medical devices, and more specifically, to a rehabilitation chair. Background Technology

[0002] For patients with limb disabilities (such as paralyzed patients), prolonged inactivity of the limbs can easily lead to muscle atrophy, which is not conducive to the patient's recovery.

[0003] In related technologies, rehabilitation chairs can only enable patients to swing their legs, but cannot enable patients to exercise their limbs. Utility Model Content

[0004] The purpose of this application is to provide a rehabilitation chair that can assist people with limb disabilities in exercising their limbs.

[0005] This application provides a rehabilitation chair, which includes a seat body, multiple movable parts, multiple crank-slider mechanisms, and a drive mechanism. The multiple movable parts are movably disposed on the seat body in a vertical direction, and include a left armrest, a right armrest, a left footrest, and a right footrest. The multiple crank-slider mechanisms are disposed on the seat body, each corresponding to one of the movable parts, and the movable parts are connected to the sliders of the crank-slider mechanisms. The drive mechanism is disposed on the seat body and is used to drive the cranks of the multiple crank-slider mechanisms to rotate, thereby synchronously raising or lowering the left armrest and the right footrest, and synchronously raising or lowering the right armrest and the left footrest. When the left armrest and the right footrest are at their upper limit positions, the right armrest and the left footrest are at their lower limit positions; when the left armrest and the right footrest are at their lower limit positions, the right armrest and the left footrest are at their upper limit positions.

[0006] In the aforementioned technical solution, when using the rehabilitation chair, the patient sits on it with their hands resting on the left and right armrests, and their feet placed on the left and right footrests respectively. The left and right armrests, footrests, and footrests work together to raise and lower the patient's limbs. When the left armrest and right footrest rise, and the right armrest and left footrest descend, the patient's left hand and right foot rise, while their right hand and left foot fall. Conversely, when the left armrest and right footrest descend, the right armrest and left footrest rise, while the patient's left hand and right foot fall, while their right hand and left foot rise. This coordinated movement of the patient's limbs improves their coordination and stability, provides a good exercise effect, and helps reduce the risk of muscle atrophy.

[0007] As an optional technical solution in this application embodiment, the phase difference between the crank of the crank-slider mechanism corresponding to the left armrest and the crank of the crank-slider mechanism corresponding to the right armrest is 180°; the phase difference between the crank of the crank-slider mechanism corresponding to the left pedal and the crank of the crank-slider mechanism corresponding to the right pedal is 180°; and the phase difference between the crank of the crank-slider mechanism corresponding to the left armrest and the crank of the crank-slider mechanism corresponding to the right pedal is 0.

[0008] In the above technical solution, by making the phase difference between the crank of the crank-slider mechanism corresponding to the left armrest and the crank of the crank-slider mechanism corresponding to the right armrest 180°, the phase difference between the crank of the crank-slider mechanism corresponding to the left pedal and the crank of the crank-slider mechanism corresponding to the right pedal 180°, and the phase difference between the crank of the crank-slider mechanism corresponding to the left armrest and the crank of the crank-slider mechanism corresponding to the right pedal 0, it is beneficial to make the movement directions of the left armrest and the right armrest opposite, and the movement directions of the left pedal and the right pedal opposite, and to make the movement directions of the left armrest and the right pedal the same, and the movement directions of the right armrest and the left pedal the same.

[0009] As an optional technical solution in this application embodiment, the crank of the crank-slider mechanism corresponding to the left armrest and the crank of the crank-slider mechanism corresponding to the left pedal are connected in a transmission manner; the crank of the crank-slider mechanism corresponding to the right armrest and the crank of the crank-slider mechanism corresponding to the right pedal are connected in a transmission manner.

[0010] In the above technical solution, by connecting the crank of the crank-slider mechanism corresponding to the left armrest and the crank of the crank-slider mechanism corresponding to the left foot pedal, it is beneficial to keep the movement directions of the left armrest and the left foot pedal always opposite. Similarly, by connecting the crank of the crank-slider mechanism corresponding to the right armrest and the crank-slider mechanism corresponding to the right foot pedal, it is beneficial to keep the movement directions of the right armrest and the right foot pedal always opposite.

[0011] As an optional technical solution in this application embodiment, the rehabilitation chair further includes a first transmission shaft, which is rotatably disposed on the seat body. The crank of the crank-slider mechanism corresponding to the left armrest and the crank of the crank-slider mechanism corresponding to the right armrest are both connected to the first transmission shaft. The driving mechanism includes a driving member, which is connected to the first transmission shaft in a transmission manner. The driving member is used to drive the first transmission shaft to rotate.

[0012] In the above technical solution, a single drive unit can drive the movements of the left armrest, right armrest, left foot pedal, and right foot pedal. On the one hand, this helps improve the synchronicity of the rising and falling of the left armrest and right foot pedal, and the synchronicity of the rising and falling of the right armrest and left foot pedal, thereby improving the coordination and stability of the patient's limb movements. On the other hand, the cost of the rehabilitation chair is lower when only one drive unit is used.

[0013] As an optional technical solution in this application embodiment, the rehabilitation chair includes a transmission mechanism, and the driving component is connected to the first transmission shaft through the transmission mechanism; the transmission mechanism includes one of a gear transmission mechanism, a belt transmission mechanism, and a chain transmission mechanism.

[0014] In the above technical solutions, when the transmission mechanism is a gear transmission mechanism, it offers high transmission accuracy, good synchronization, the ability to withstand large torques, and a long service life. When the transmission mechanism is a belt transmission mechanism, it helps reduce the noise and cost of the rehabilitation chair. When the transmission mechanism is a chain transmission mechanism, it offers high transmission accuracy, good synchronization, and stronger environmental adaptability.

[0015] As an optional technical solution in this application embodiment, the driving mechanism includes two driving members, one of which is connected to the crank-slider mechanism corresponding to the left armrest via a crank drive, and the other driving member is connected to the crank-slider mechanism corresponding to the right armrest via a crank drive.

[0016] In the above technical solution, one drive component can drive the left armrest and left foot pedal, and another drive component can drive the right armrest and right foot pedal. The two drive components can share the load, which helps to extend the life of the drive components and reduce the heat dissipation requirements.

[0017] As an optional technical solution in this application embodiment, the crank of the crank-slider mechanism is a first gear, the rehabilitation chair includes a second gear, the first gear of the crank-slider mechanism corresponding to the left armrest and the first gear of the crank-slider mechanism corresponding to the left foot pedal are both meshed with a second gear, the first gear of the crank-slider mechanism corresponding to the right armrest and the first gear of the crank-slider mechanism corresponding to the right foot pedal are both meshed with another second gear, and the output end of each drive member is connected to a second gear.

[0018] In the above technical solution, the crank of the crank-slider mechanism is the first gear. The first gear can be used as the crank of the crank-slider mechanism and can also mesh with the second gear to realize the transmission connection with the driving component. One component can realize multiple functions, which helps to simplify the structure of the rehabilitation chair. By connecting the output end of each driving component to a second gear, space is made reasonable, which helps to reduce the risk of interference between the driving component and other structures and improves the reliability of the rehabilitation chair.

[0019] As an optional technical solution in this application embodiment, the rehabilitation chair includes a first pulley and a first transmission belt. The crank of each crank-slider mechanism is coaxially arranged with one of the first pulleys. The first pulley coaxially arranged with the crank of the crank-slider mechanism corresponding to the left armrest and the first pulley coaxially arranged with the crank of the crank-slider mechanism corresponding to the left foot pedal are connected by a first transmission belt. The first pulley coaxially arranged with the crank of the crank-slider mechanism corresponding to the right armrest and the first pulley coaxially arranged with the crank of the crank-slider mechanism corresponding to the right foot pedal are connected by another first transmission belt. One driving member is connected to the first pulley corresponding to the left armrest, and the other driving member is connected to the first pulley corresponding to the right armrest.

[0020] In the above technical solution, the crank of the crank-slider mechanism corresponding to the left armrest and the crank of the crank-slider mechanism corresponding to the left foot pedal are connected by a belt drive mechanism, and the crank of the crank-slider mechanism corresponding to the right armrest and the crank of the crank-slider mechanism corresponding to the right foot pedal are connected by another belt drive mechanism, which helps to reduce the noise of the rehabilitation chair and reduce the cost of the rehabilitation chair.

[0021] As an optional technical solution in this application embodiment, the rehabilitation chair includes a first sprocket and a first chain. The crank of each crank-slider mechanism is coaxially arranged with one first sprocket. The first sprocket coaxial with the crank of the crank-slider mechanism corresponding to the left armrest and the first sprocket coaxial with the crank of the crank-slider mechanism corresponding to the left foot pedal are connected by a first chain. The first sprocket coaxial with the crank of the crank-slider mechanism corresponding to the right armrest and the first sprocket coaxial with the crank of the crank-slider mechanism corresponding to the right foot pedal are connected by another first chain. One driving member is connected to the first sprocket corresponding to the left armrest, and the other driving member is connected to the first sprocket corresponding to the right armrest.

[0022] In the above technical solution, the crank of the crank-slider mechanism corresponding to the left armrest and the crank of the crank-slider mechanism corresponding to the left foot pedal are connected by a chain drive mechanism, and the crank of the crank-slider mechanism corresponding to the right armrest and the crank of the crank-slider mechanism corresponding to the right foot pedal are connected by another chain drive mechanism. This is beneficial to improving transmission accuracy, improving the synchronicity of the rise or fall of the left armrest and the right foot pedal, and improving the synchronicity of the rise or fall of the right armrest and the left foot pedal, and making it more adaptable to the environment.

[0023] As an optional technical solution in this application embodiment, the crank of the crank-slider mechanism is a first gear, the rehabilitation chair includes a second gear, the first gear of the crank-slider mechanism corresponding to the left armrest and the first gear of the crank-slider mechanism corresponding to the left foot pedal are both meshed with a second gear, and the first gear of the crank-slider mechanism corresponding to the right armrest and the first gear of the crank-slider mechanism corresponding to the right foot pedal are both meshed with another second gear.

[0024] In the above technical solution, the crank of the crank-slider mechanism is the first gear. The first gear can be used as the crank of the crank-slider mechanism and can also mesh with the second gear to realize the transmission connection with the driving component. One component can realize multiple functions, which is conducive to simplifying the structure of the rehabilitation chair.

[0025] As an optional technical solution in this application embodiment, the rehabilitation chair includes a first pulley and a first transmission belt. The crank of each crank-slider mechanism is coaxially arranged with one of the first pulleys. The first pulley coaxially arranged with the crank of the crank-slider mechanism corresponding to the left armrest and the first pulley coaxially arranged with the crank of the crank-slider mechanism corresponding to the left foot pedal are connected by a first transmission belt. The first pulley coaxially arranged with the crank of the crank-slider mechanism corresponding to the right armrest and the first pulley coaxially arranged with the crank of the crank-slider mechanism corresponding to the right foot pedal are connected by another first transmission belt.

[0026] In the above technical solution, the crank of the crank-slider mechanism corresponding to the left armrest and the crank of the crank-slider mechanism corresponding to the left foot pedal are connected by a belt drive mechanism, and the crank of the crank-slider mechanism corresponding to the right armrest and the crank of the crank-slider mechanism corresponding to the right foot pedal are connected by another belt drive mechanism, which helps to reduce the noise of the rehabilitation chair and reduce the cost of the rehabilitation chair.

[0027] As an optional technical solution in this application embodiment, the rehabilitation chair includes a first sprocket and a first chain. The crank of each crank-slider mechanism is coaxially arranged with one of the first sprockets. The first sprocket coaxial with the crank of the crank-slider mechanism corresponding to the left armrest and the first sprocket coaxial with the crank of the crank-slider mechanism corresponding to the left foot pedal are connected by a first chain. The first sprocket coaxial with the crank of the crank-slider mechanism corresponding to the right armrest and the first sprocket coaxial with the crank of the crank-slider mechanism corresponding to the right foot pedal are connected by another first chain.

[0028] In the above technical solution, the crank of the crank-slider mechanism corresponding to the left armrest and the crank of the crank-slider mechanism corresponding to the left foot pedal are connected by a chain drive mechanism, and the crank of the crank-slider mechanism corresponding to the right armrest and the crank of the crank-slider mechanism corresponding to the right foot pedal are connected by another chain drive mechanism. This is beneficial to improving transmission accuracy, improving the synchronicity of the rise or fall of the left armrest and the right foot pedal, and improving the synchronicity of the rise or fall of the right armrest and the left foot pedal, and making it more adaptable to the environment.

[0029] As an optional technical solution in this application embodiment, the crank of the crank-slider mechanism corresponding to the left armrest and the crank of the crank-slider mechanism corresponding to the right armrest are connected in a transmission connection; the crank of the crank-slider mechanism corresponding to the left pedal and the crank of the crank-slider mechanism corresponding to the right pedal are connected in a transmission connection.

[0030] In the above technical solution, by connecting the crank of the crank-slider mechanism corresponding to the left armrest and the crank of the crank-slider mechanism corresponding to the right armrest, it is beneficial to keep the movement directions of the left armrest and the right armrest always opposite. Similarly, by connecting the crank of the crank-slider mechanism corresponding to the left pedal and the crank-slider mechanism corresponding to the right pedal, it is beneficial to keep the movement directions of the left pedal and the right pedal always opposite.

[0031] As an optional technical solution in this application embodiment, the rehabilitation chair further includes a first transmission shaft, which is rotatably disposed on the seat body. The crank of the crank-slider mechanism corresponding to the left armrest and the crank of the crank-slider mechanism corresponding to the right armrest are both connected to the first transmission shaft. The rehabilitation chair further includes a second transmission shaft, which is drivenly connected to the crank of the crank-slider mechanism corresponding to the left foot pedal and to the crank of the crank-slider mechanism corresponding to the right foot pedal. The driving mechanism includes two driving members, one of which is drivenly connected to the first transmission shaft and the other of which is drivenly connected to the second transmission shaft.

[0032] In the above technical solution, the cranks of the crank-slider mechanism corresponding to the left armrest and the crank-slider mechanism corresponding to the right armrest are both connected to the first transmission shaft. Thus, when the left armrest rises, the right armrest descends. When the left armrest descends, the right armrest rises, which helps maintain the opposite directions of movement for the left and right armrests. The second transmission shaft is connected to the crank of the crank-slider mechanism corresponding to the left pedal, and the second transmission shaft is also connected to the crank of the crank-slider mechanism corresponding to the right pedal. Thus, when the left pedal rises, the right pedal descends. When the left pedal descends, the right pedal rises, which helps maintain the opposite directions of movement for the left and right pedals. As an optional technical solution in this application embodiment, the crank of the crank-slider mechanism is a first gear, the rehabilitation chair includes a second gear and a third gear, the first gear and a third gear of the crank-slider mechanism corresponding to the left foot pedal are both meshed with a second gear, the first gear and another third gear of the crank-slider mechanism corresponding to the right foot pedal are both meshed with another second gear, and both third gears are connected to the second transmission shaft.

[0033] In the above technical solution, the crank of the crank-slider mechanism is the first gear. The first gear can be used as the crank of the crank-slider mechanism and can also mesh with the second gear to realize the transmission connection with the drive component. One component can realize multiple functions, which helps to simplify the structure of the rehabilitation chair. By connecting both third gears to the second transmission shaft, one third gear is connected to the crank of the crank-slider mechanism corresponding to the left foot pedal through a second gear, and the other third gear is connected to the crank of the crank-slider mechanism corresponding to the right foot pedal through another second gear, which helps to keep the movement directions of the left and right foot pedals opposite.

[0034] As an optional technical solution in this application embodiment, the rehabilitation chair includes a first pulley, a second pulley, and a first transmission belt. The crank of each crank-slider mechanism is coaxially arranged with one of the first pulleys. The first pulley and a second pulley coaxially arranged with the crank of the crank-slider mechanism corresponding to the left foot pedal are connected by a first transmission belt. The first pulley and another second pulley coaxially arranged with the crank of the crank-slider mechanism corresponding to the right foot pedal are connected by another first transmission belt. Both second pulleys are connected to the second transmission shaft.

[0035] In the above technical solution, the crank and second drive shaft of the crank-slider mechanism corresponding to the left foot pedal are connected by a belt drive mechanism, and the crank and second drive shaft of the crank-slider mechanism corresponding to the right foot pedal are connected by another belt drive mechanism. This helps to keep the movement directions of the left and right foot pedals opposite, which helps to reduce the noise of the rehabilitation chair and reduce the cost of the rehabilitation chair.

[0036] As an optional technical solution in this application embodiment, the rehabilitation chair includes a first sprocket, a second sprocket, and a first chain. The crank of each crank-slider mechanism is coaxially arranged with one of the first sprockets. The first sprocket and a second sprocket of the crank-slider mechanism corresponding to the left foot pedal are connected by a first chain. The first sprocket and another second sprocket of the crank-slider mechanism corresponding to the right foot pedal are connected by another first chain. Both second sprockets are connected to the second drive shaft.

[0037] In the above technical solution, the crank and second drive shaft of the crank-slider mechanism corresponding to the left pedal are connected by a chain drive mechanism, and the crank and second drive shaft of the crank-slider mechanism corresponding to the right pedal are connected by another chain drive mechanism. This helps to improve transmission accuracy, keep the left and right pedals moving in opposite directions, and has stronger environmental adaptability.

[0038] As an optional technical solution in this application embodiment, the rehabilitation chair includes a transmission mechanism. One of the driving components is connected to the first transmission shaft through the transmission mechanism, and the other driving component is connected to the second transmission shaft through another transmission mechanism. The transmission mechanism includes one of a gear transmission mechanism, a belt transmission mechanism, and a chain transmission mechanism.

[0039] In the above technical solutions, when the transmission mechanism is a gear transmission mechanism, it offers high transmission accuracy, good synchronization, the ability to withstand large torques, and a long service life. When the transmission mechanism is a belt transmission mechanism, it helps reduce the noise and cost of the rehabilitation chair. When the transmission mechanism is a chain transmission mechanism, it offers high transmission accuracy, good synchronization, and stronger environmental adaptability.

[0040] As an optional technical solution in this application embodiment, the output end of one of the driving components is connected to the first transmission shaft; and / or the output end of the other driving component is connected to the second transmission shaft.

[0041] In the above technical solution, when the output end of one drive component is connected to the first transmission shaft, it is beneficial to reduce the number of transmission mechanisms and lower the production cost of the rehabilitation chair. Similarly, when the output end of another drive component is connected to the second transmission shaft, it is beneficial to reduce the number of transmission mechanisms and lower the production cost of the rehabilitation chair.

[0042] As an optional technical solution in this application embodiment, the drive mechanism includes four drive components and a controller. Each drive component is connected to the crank drive of one of the crank-slider mechanisms. The controller is electrically connected to the four drive components. The controller is configured to control the working state of the four drive components to achieve synchronous raising or lowering of the left armrest and the right foot pedal, and synchronous raising or lowering of the right armrest and the left foot pedal.

[0043] In the above technical solution, the drive mechanism includes four drive components, which are used to drive the left armrest, right armrest, left foot pedal and right foot pedal respectively. The four drive components can share the load, which helps to extend the life of the drive components and reduce the heat dissipation requirements.

[0044] As an optional technical solution in this application embodiment, the crank of the crank-slider mechanism is a first gear, the rehabilitation chair includes a second gear, one of the first gears meshes with one of the second gears, and the output end of each of the driving components is connected to one of the second gears.

[0045] In the above technical solution, the crank of the crank-slider mechanism is the first gear. The first gear can be used as the crank of the crank-slider mechanism and can also mesh with the second gear to realize the transmission connection with the driving component. One component can realize multiple functions, which helps to simplify the structure of the rehabilitation chair. The output end of each driving component is connected to the first gear through a second gear, which helps to adjust the torque and speed of the first gear, so that the speed of the moving part rising or falling is moderate.

[0046] As an optional technical solution in this application embodiment, the rehabilitation chair includes a transmission mechanism, and each of the driving components is connected to the crank transmission of the crank-slider mechanism through a transmission mechanism. The transmission mechanism includes one of a gear transmission mechanism, a belt transmission mechanism, and a chain transmission mechanism.

[0047] In the above technical solutions, when the transmission mechanism is a gear transmission mechanism, it offers high transmission accuracy, good synchronization, the ability to withstand large torques, and a long service life. When the transmission mechanism is a belt transmission mechanism, it helps reduce the noise and cost of the rehabilitation chair. When the transmission mechanism is a chain transmission mechanism, it offers high transmission accuracy, good synchronization, and stronger environmental adaptability.

[0048] As an optional technical solution in this application embodiment, the crank-slider mechanism includes a crank, a connecting rod, and a slider. The two ends of the connecting rod are rotatably connected to the crank and the slider, respectively. A plurality of first adjustment holes are spaced apart on the crank. The distance between the plurality of first adjustment holes and the rotation axis of the crank is different. The connecting rod is selectively connected to one of the first adjustment holes.

[0049] In the above technical solution, when the connecting rod is connected to different first adjustment holes, the range of motion of the moving part is different. The patient can adjust the connection position of the connecting rod and the crank as needed, thereby improving the exercise effect.

[0050] As an optional technical solution in this application embodiment, the crank of the crank-slider mechanism is a first gear, and a plurality of first adjustment holes are arranged radially spaced along the first gear; or the crank of the crank-slider mechanism is a turntable, and a plurality of first adjustment holes are arranged radially spaced along the turntable; or the crank of the crank-slider mechanism extends along a first direction, and a plurality of first adjustment holes are arranged spaced along the first direction.

[0051] In the above technical solutions, when the crank is the first gear, the first gear can mesh with other gears to achieve transmission. Multiple first adjustment holes are arranged radially at intervals along the first gear, allowing the patient to adjust the connection position between the connecting rod and the first gear as needed to adjust the rising and falling amplitude of the moving parts. When the crank is a turntable, the center of gravity of the turntable is less likely to shift during rotation, which helps improve the stability of the rehabilitation chair. Multiple first adjustment holes are arranged radially at intervals along the turntable, allowing the patient to adjust the connection position between the connecting rod and the turntable as needed to adjust the rising and falling amplitude of the moving parts. When the crank extends along the first direction, the crank is lighter, which helps reduce the weight of the rehabilitation chair. Multiple first adjustment holes are arranged at intervals along the first direction, allowing the patient to adjust the connection position between the connecting rod and the crank as needed to adjust the rising and falling amplitude of the moving parts.

[0052] As an optional technical solution in this application embodiment, the crank-slider mechanism includes a crank, a connecting rod, and a slider. The two ends of the connecting rod are rotatably connected to the crank and the slider, respectively. The slider is provided with a plurality of second adjustment holes, which are spaced apart along the vertical direction. The connecting rod is selectively connected to one of the second adjustment holes.

[0053] In the above technical solution, when the connecting rod is connected to different second adjustment holes, the upper and lower limit positions of the movable part can be adjusted to adapt to the patient's height. The patient can adjust the connection position between the connecting rod and the slider as needed, thereby improving comfort.

[0054] As an optional technical solution in this application embodiment, the seat body includes a left support, a right support, and a seat support. The seat support connects the left support and the right support. The crank-slider mechanism corresponding to the left armrest and the crank-slider mechanism corresponding to the left foot pedal are both disposed on the left support. The left armrest and the left foot pedal are both movably disposed on the left support along the vertical direction. The crank-slider mechanism corresponding to the right armrest and the crank-slider mechanism corresponding to the right foot pedal are both disposed on the right support. The right armrest and the right foot pedal are both movably disposed on the right support along the vertical direction.

[0055] In the above technical solution, the crank-slider mechanism corresponding to the left armrest and the crank-slider mechanism corresponding to the left foot pedal are both located on the left support. Both the left armrest and the left foot pedal are movably mounted on the left support in the vertical direction. This protects these two mechanisms from damage. Similarly, the crank-slider mechanisms corresponding to the right armrest and the right foot pedal are both located on the right support. Both the right armrest and the right foot pedal are movably mounted on the right support in the vertical direction. This protects these mechanisms from damage. The patient can sit on the seat frame, which provides good support.

[0056] As an optional technical solution in this application embodiment, the left support includes a left top plate, the left top plate is provided with a first through hole, and the left handrail is movably inserted through the first through hole along the vertical direction; and / or the right support includes a right top plate, the right top plate is provided with a second through hole, and the right handrail is movably inserted through the second through hole along the vertical direction.

[0057] In the above technical solution, regardless of whether the left armrest is in the upper or lower limit position, it is always inserted through the first through hole and will not detach from it. This prevents the patient from easily placing their hand between the left armrest and the left top plate, reducing the risk of injury and improving the safety of the rehabilitation chair. Similarly, regardless of whether the right armrest is in the upper or lower limit position, it is always inserted through the second through hole and will not detach from it. This also prevents the patient from easily placing their hand between the right armrest and the right top plate, reducing the risk of injury and improving the safety of the rehabilitation chair.

[0058] As an optional technical solution in this application embodiment, the left support includes a left top plate, the left handrail is located above the left top plate, the left top plate is provided with a first through hole, the left handrail and the slider of the crank-slider mechanism corresponding to the left handrail are connected by a first guide rod, the first guide rod is movably inserted through the first through hole in the vertical direction; and / or the right support includes a right top plate, the right handrail is located above the right top plate, the right top plate is provided with a second through hole, the right handrail and the slider of the crank-slider mechanism corresponding to the right handrail are connected by a second guide rod, the second guide rod is movably inserted through the second through hole in the vertical direction.

[0059] In the above technical solution, the left armrest is located above the left top plate, and the first guide rod connects the left armrest and the slider of the corresponding crank-slider mechanism. This helps to reduce the vertical dimension of the left armrest and lower the cost of the rehabilitation chair. Similarly, the right armrest is located above the right top plate, and the second guide rod connects the right armrest and the slider of the corresponding crank-slider mechanism. This also helps to reduce the vertical dimension of the right armrest and lower the cost of the rehabilitation chair.

[0060] As an optional technical solution in this application embodiment, the rehabilitation chair includes a seat panel and a massage mechanism. The seat panel is disposed on the seat body, and the massage mechanism is movably disposed on the seat panel along the vertical direction. The driving mechanism is used to drive the massage mechanism to move along the vertical direction.

[0061] In the above technical solution, the seat panel is set on the seat body, and the patient can sit on the seat panel. The massage mechanism can massage the patient to improve the patient's blood circulation and help the patient recover.

[0062] As an optional technical solution in this application embodiment, the rehabilitation chair includes multiple massage mechanisms, including a left massage mechanism and a right massage mechanism. The left massage mechanism rises or falls synchronously with the right foot pedal, and the right massage mechanism rises or falls synchronously with the left foot pedal.

[0063] In the above technical solution, when the right foot pedal rises and the left foot pedal falls, the patient's left buttock makes closer contact with the seat panel than the right buttock. The left massage mechanism rises to massage the patient's left buttock, resulting in a better massage effect. Conversely, when the left foot pedal rises and the right foot pedal falls, the patient's right buttock makes closer contact with the seat panel than the left buttock. The right massage mechanism rises to massage the patient's right buttock, resulting in a better massage effect.

[0064] As an optional technical solution in this application embodiment, the rehabilitation chair includes a first transmission shaft, which is rotatably disposed on the seat body and located below the seat panel. The crank of the crank-slider mechanism corresponding to the left foot pedal and the crank of the crank-slider mechanism corresponding to the right foot pedal are both connected to the first transmission shaft. The driving mechanism is used to drive the first transmission shaft to rotate. The first transmission shaft is provided with a left cam and a right cam. The left cam is used to push the left massage mechanism to rise, and the right cam is used to push the right massage mechanism to rise. The massage mechanism has an abutment member. The abutment member of the left massage mechanism abuts against the left cam, and the abutment member of the right massage mechanism abuts against the right cam. When the abutment member of the left massage mechanism is in the highest position, the abutment member of the right massage mechanism is in the lowest position. When the abutment member of the left massage mechanism is in the lowest position, the abutment member of the right massage mechanism is in the highest position.

[0065] In the above technical solution, the phase difference between the left and right cams is 180°, so that when the left massage mechanism rises, the right massage mechanism falls. Furthermore, since both the left and right cams are located on the first drive shaft, and the first drive shaft is connected to the crank-slider mechanism corresponding to the left foot pedal and the crank-slider mechanism corresponding to the right foot pedal, it is possible to achieve synchronous rising or falling of the left massage mechanism and the right massage mechanism, and synchronous rising or falling of the left foot pedal.

[0066] As an optional technical solution in this application embodiment, the massage mechanism further includes a massage head, a movable plate, a first elastic member, and a stop member. The movable plate is movably disposed on the seat panel along the vertical direction. The massage head is disposed above the movable plate. The seat panel is provided with a third through hole for the massage head to extend out. The stop member is movably disposed on the movable plate along the vertical direction. The first elastic member abuts against the stop member and the movable plate. The driving mechanism is used to drive the stop member to move along the vertical direction.

[0067] In the above technical solution, when the drive mechanism drives the abutment to move upward, the abutment transmits power to the movable plate through the first elastic element, thereby causing the movable plate to move upward, so that the massage head extends out from the third through hole to massage the patient. The first elastic element can play a buffering role, so that the stress of the massage head on the patient is not too great, which helps to reduce the patient's discomfort.

[0068] As an optional technical solution in this application embodiment, the massage mechanism further includes a second elastic member, which is disposed between the movable plate and the seat panel, and is used to drive the movable plate to reset.

[0069] In the above technical solution, by setting a second elastic element, it is beneficial to reset the movable plate and make the movement of the massage head more accurate and reliable.

[0070] As an optional technical solution in this application embodiment, the movable plate is provided with a fourth through hole, and the abutting member includes a rod, a first limiting part and a second limiting part. The rod passes through the fourth through hole, and the first limiting part and the second limiting part are respectively disposed at opposite ends of the rod. The first limiting part is located above the movable plate, and the second limiting part is located below the movable plate. The first elastic member is sleeved on the rod, and the two ends of the first elastic member abut against the second limiting part and the movable plate, respectively.

[0071] In the above technical solution, the abutment member includes a rod, a first limiting part, and a second limiting part. The rod passes through the fourth through hole, and the first and second limiting parts are connected to both ends of the rod. The first and second limiting parts cooperate to limit the rod, ensuring that the rod can only move within a preset range in the vertical direction, reducing the risk of the rod dislodging from the fourth through hole. By sleeved the first elastic element onto the rod, the risk of the first elastic element bending and deforming in other directions is reduced, thus improving the stability of the first elastic element.

[0072] As an optional technical solution in this application embodiment, the massage mechanism includes a plurality of massage heads, the plurality of massage heads including a first massage head, a second massage head and a third massage head, the first massage head being used to massage the Huantiao acupoint, the second massage head being used to massage the Huanzhong acupoint, and the third massage head being used to massage the Zhibian acupoint.

[0073] In the above technical solution, the first massage head can massage the Huantiao acupoint, which is beneficial for dispelling wind and dampness, strengthening the waist and unblocking the meridians. The second massage head can massage the Huanzhong acupoint, which is beneficial for relieving sciatica, lower back pain, and leg pain. The third massage head can massage the Zhibian acupoint, which is beneficial for relaxing the meridians and activating blood circulation, relieving lower back and leg pain, and improving sciatica. Attached Figure Description

[0074] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0075] Figure 1 This application provides structural schematic diagrams of rehabilitation chairs for some embodiments. Figure 2 This application provides schematic diagrams of the internal structure of a rehabilitation chair according to some embodiments. Figure 3 This is a front view schematic diagram of the internal structure of a rehabilitation chair provided in some embodiments of this application; Figure 4 A schematic diagram of the internal structure of a rehabilitation chair (with hidden left and right supports) provided in some embodiments of this application; Figure 5 Schematic diagram of the internal structure of a rehabilitation chair provided in other embodiments of this application; Figure 6 A front view schematic diagram of the internal structure of a rehabilitation chair provided in other embodiments of this application; Figure 7 Schematic diagram of the internal structure of a rehabilitation chair provided in some embodiments of this application; Figure 8 A front view schematic diagram of the internal structure of a rehabilitation chair provided in some embodiments of this application; Figure 9 A cross-sectional view of a rehabilitation chair provided for some embodiments of this application; Figure 10 This application provides schematic diagrams of the internal structure of a rehabilitation chair in some of its embodiments. Figure 11 A cross-sectional view of a rehabilitation chair provided in some embodiments of this application; Figure 12 This application also provides schematic diagrams of the internal structure of a rehabilitation chair in some embodiments; Figure 13 This application also provides frontal views of the internal structure of a rehabilitation chair in some embodiments; Figure 14 Schematic diagram of the internal structure of a rehabilitation chair provided for other embodiments of this application; Figure 15 A front view schematic diagram of the internal structure of a rehabilitation chair provided in some other embodiments of this application; Figure 16 Schematic diagram of the internal structure of a rehabilitation chair provided in some other embodiments of this application; Figure 17Schematic diagrams of the internal structure of a rehabilitation chair provided in some other embodiments of this application; Figure 18 This application also provides frontal views of the internal structure of a rehabilitation chair in some other embodiments; Figure 19 Schematic diagram of the internal structure of a rehabilitation chair provided in some further embodiments of this application; Figure 20 A front view schematic diagram of the internal structure of a rehabilitation chair provided in some further embodiments of this application; Figure 21 for Figure 17 A magnified view of position A in the middle; Figure 22 for Figure 19 A magnified view of position B in the middle; Figure 23 A front view schematic diagram of the internal structure of a rehabilitation chair provided in some embodiments of this application; Figure 24 This application provides schematic diagrams of the internal structure of a rehabilitation chair in some other embodiments. Figure 25 This is a front view schematic diagram of the internal structure of a rehabilitation chair provided in some other embodiments of this application; Figure 26 This is a schematic diagram of the structure of a rehabilitation chair provided in other embodiments of this application; Figure 27 This application provides schematic diagrams of the structure of a massage mechanism according to some embodiments. Figure 28 A cross-sectional view of a massage mechanism provided in some embodiments of this application.

[0076] Icons: 10 - Rehabilitation chair; 100 - Seat body; 110 - Left support; 111 - Left top plate; 1111 - First through hole; 120 - Right support; 130 - Seat support; 140 - Slide rail; 150 - Seat panel; 121 - Right top plate; 1211 - Second through hole; 200 - Moving parts; 210 - Left armrest; 220 - Right armrest; 230 - Left foot pedal; 240 - Right foot pedal; 300 - Crank lever Block mechanism; 310-crank; 311-first gear; 312-turntable; 313-first adjusting hole; 320-connecting rod; 330-slider; 331-second adjusting hole; 400-drive mechanism; 410-drive component; 510-first transmission shaft; 520-second gear; 530-first pulley; 540-first transmission belt; 550-tensioning wheel; 561-first sprocket; 562-first chain; 5 63-Second sprocket; 571-Third gear; 572-Second drive shaft; 573-Second pulley; 591-Left cam; 592-Right cam; 600-Transmission mechanism; 610-Gear transmission mechanism; 611-Fifth gear; 612-Fourth gear; 620-Belt transmission mechanism; 621-Driving wheel; 622-Driven wheel; 623-Second transmission belt; 710-First guide rod; 720-Second guide rod; 800-Massage mechanism; 810-Left massage mechanism; 811-Abutting part; 8111-Ring part; 8112-First limiting part; 8113-Second limiting part; 812-Moving plate; 813-Massage head; 8131-First massage head; 8132-Second massage head; 8133-Third massage head; 814-First elastic element; 815-Second elastic element; 820-Right massage mechanism; 900-Exterior trim. Detailed Implementation

[0077] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0078] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0079] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0080] In the description of the embodiments of this application, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly placed when the product of this application is used, or the orientation or positional relationship commonly understood by those skilled in the art. They are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0081] Furthermore, the terms "first," "second," and "third" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0082] In the description of the embodiments of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0083] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , Figure 1 This is a schematic diagram of the structure of a rehabilitation chair 10 provided in some embodiments of this application. Figure 2 This is a schematic diagram of the internal structure of a rehabilitation chair 10 provided in some embodiments of this application. Figure 3 This is a front view schematic diagram of the internal structure of a rehabilitation chair 10 provided in some embodiments of this application. Figure 4This is a schematic diagram of the internal structure of a rehabilitation chair 10 (with the left support 110 and right support 120 hidden) provided in some embodiments of this application. Embodiments of this application provide a rehabilitation chair 10, which includes a seat body 100, multiple movable parts 200, multiple crank-slider mechanisms 300, and a drive mechanism 400. The multiple movable parts 200 are movably disposed on the seat body 100 in the vertical direction, and include a left armrest 210, a right armrest 220, a left footrest 230, and a right footrest 240. The multiple crank-slider mechanisms 300 are disposed on the seat body 100, and each crank-slider mechanism 300 corresponds one-to-one with a movable part 200, with the movable part 200 connected to the slider 330 of the crank-slider mechanism 300. The drive mechanism 400 is disposed on the seat body 100. The drive mechanism 400 is used to drive the crank 310 of the multiple crank-slider mechanisms 300 to rotate, so as to realize the synchronous rise or fall of the left armrest 210 and the right foot pedal 240, and the synchronous rise or fall of the right armrest 220 and the left foot pedal 230. When the left armrest 210 and the right foot pedal 240 are at the upper limit position, the right armrest 220 and the left foot pedal 230 are at the lower limit position. When the left armrest 210 and the right foot pedal 240 are at the lower limit position, the right armrest 220 and the left foot pedal 230 are at the upper limit position.

[0084] The seat body 100 is the main load-bearing structure of the rehabilitation chair 10. The seat body 100 can be made of multiple supporting components connected by welding, fasteners, etc.

[0085] The seat body 100 can be made of metal materials, such as aluminum alloy, steel, iron, etc.

[0086] The seat body 100 can also be made of non-metallic materials, such as solid wood and composite materials.

[0087] The rehabilitation chair 10 also includes an outer casing 900, which is located on the outside of the chair body 100. The outer casing 900 may include fabric, seat structure and filling material. The fabric includes, but is not limited to, genuine leather, fabric (cotton, linen, velvet, etc.), artificial leather, etc. The seat structure includes, but is not limited to, serpentine springs, bandages, wooden boards, etc. The filling material includes, but is not limited to, sponge (different densities and resilience), down, latex, artificial cotton, etc.

[0088] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The vertical direction is the X direction shown in the figure.

[0089] The movable component 200 is a movable part disposed on the seat body 100. The movable component 200 is movably disposed on the seat body 100 in the vertical direction, meaning that the movable component 200 can move upwards or downwards relative to the seat body 100. In some embodiments, the movable component 200 can be slidably connected to the seat body 100, allowing the movable component 200 to slide in the vertical direction. In other embodiments, the seat body 100 is provided with a through hole, and the movable component 200 passes through the through hole, allowing the movable component 200 to move in the vertical direction.

[0090] The rehabilitation chair 10 includes at least four movable parts 200. When the rehabilitation chair 10 includes only four movable parts 200, the four movable parts 200 are the left armrest 210, the right armrest 220, the left footrest 230, and the right footrest 240. When the rehabilitation chair 10 includes more than four movable parts 200, the multiple movable parts 200 include the left armrest 210, the right armrest 220, the left footrest 230, and the right footrest 240. Please refer to... Figure 1 , Figure 2 , Figure 3 and Figure 4 In the embodiment shown in the figure, there are four movable parts 200, namely the left handrail 210, the right handrail 220, the left foot pedal 230 and the right foot pedal 240.

[0091] The rehabilitation chair 10 includes multiple crank-slider mechanisms 300, each corresponding to a movable component 200; that is, one crank-slider mechanism 300 corresponds to one movable component 200. Each crank-slider mechanism 300 includes a crank 310, a connecting rod 320, and a slider 330. One end of the connecting rod 320 is rotatably connected to the crank 310, and the other end is rotatably connected to the slider 330. The slider 330 is movably mounted on the chair body 100 in the vertical direction. Please refer to [reference needed]. Figure 1 , Figure 2 , Figure 3 and Figure 4 In some embodiments, the seat body 100 further includes a slide rail 140 that extends in the vertical direction, a slider 330 that slides in conjunction with the slide rail 140, and a movable member 200 that is connected to the slider 330 of the crank-slider mechanism 300.

[0092] It should be noted that, in the embodiments of this application, the shape of the crank 310 is not limited to a rod shape; the crank 310 can also be a disc shape, for example, the crank 310 can be a turntable 312. Alternatively, the crank 310 can be a gear.

[0093] The drive mechanism 400 is the power source for the rehabilitation chair 10. The drive mechanism 400 includes a drive component 410, which can be an electric motor, an internal combustion engine, etc. The drive mechanism 400 may include one drive component 410, two drive components 410, three drive components 410, four drive components 410, or more drive components 410.

[0094] The drive mechanism 400 is installed on the seat body 100. The drive mechanism 400 is connected to the cranks 310 of the multiple crank-slider mechanisms 300. The drive mechanism 400 is used to drive the cranks 310 of the multiple crank-slider mechanisms 300 to rotate, so as to drive the left armrest 210 and the right foot pedal 240 to rise or fall synchronously, and the right armrest 220 and the left foot pedal 230 to rise or fall synchronously.

[0095] When the left handrail 210 and the right foot pedal 240 are in the upper limit position, the right handrail 220 and the left foot pedal 230 are in the lower limit position. When the left handrail 210 and the right foot pedal 240 are in the lower limit position, the right handrail 220 and the left foot pedal 230 are in the upper limit position.

[0096] When the left handrail 210 and right foot pedal 240 rise, the right handrail 220 and left foot pedal 230 fall. When the left handrail 210 and right foot pedal 240 fall, the right handrail 220 and left foot pedal 230 rise. When one of the left handrail 210 and right handrail 220 rises, the other falls; when one of the left foot pedal 230 and right foot pedal 240 rises, the other falls. This means that the rising and falling states of the handrails and foot pedals are similar to the coordinated swinging of the upper and lower limbs when a healthy person walks.

[0097] When using the rehabilitation chair 10, the patient sits on it with their hands resting on the left armrest 210 and right armrest 220, and their feet on the left footrest 230 and right footrest 240 respectively. The left armrest 210, right armrest 220, left footrest 230, and right footrest 240 work together to raise and lower the patient's limbs. When the left armrest 210 and right footrest 240 rise, and the right armrest 220 and left footrest 230 fall, the patient's left hand and right foot rise, while their right hand and left foot fall. When the left armrest 210 and right footrest 240 fall, the right armrest 220 and left footrest 230 rise, the patient's left hand and right foot fall, while their right hand and left foot rise. This coordinated movement of the patient's limbs helps improve coordination and stability, providing a good exercise effect and reducing the risk of muscle atrophy.

[0098] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4In some embodiments, the phase difference between the crank 310 of the crank-slider mechanism 300 corresponding to the left armrest 210 and the crank 310 of the crank-slider mechanism 300 corresponding to the right armrest 220 is 180°. The phase difference between the crank 310 of the crank-slider mechanism 300 corresponding to the left pedal 230 and the crank 310 of the crank-slider mechanism 300 corresponding to the right pedal 240 is 180°.

[0099] The phase difference between the crank 310 of the crank-slider mechanism 300 corresponding to the left armrest 210 and the crank 310 of the crank-slider mechanism 300 corresponding to the right armrest 220 is 180°. This means that at any given time, in the crank-slider mechanism 300 corresponding to the left armrest 210, the vector pointing from the rotation center of the crank 310 to the connection position of the connecting rod 320 and the crank 310 is the first vector, and in the crank-slider mechanism 300 corresponding to the right armrest 220, the vector pointing from the rotation center of the crank 310 to the connection position of the connecting rod 320 and the crank 310 is the second vector. The directions of the first vector and the second vector are opposite. For example, when the left armrest 210 is at its lower limit position and the right armrest 220 is at its upper limit position, in the crank-slider mechanism 300 corresponding to the left armrest 210, the connection position between the connecting rod 320 and the crank 310 is located below the rotation axis of the crank 310, and in the crank-slider mechanism 300 corresponding to the right armrest 220, the connection position between the connecting rod 320 and the crank 310 is located above the rotation axis of the crank 310.

[0100] The phase difference between the crank 310 of the crank-slider mechanism 300 corresponding to the left pedal 230 and the crank 310 of the crank-slider mechanism 300 corresponding to the right pedal 240 is 180°. This means that at any given moment, in the crank-slider mechanism 300 corresponding to the left pedal 230, the vector pointing from the rotation center of the crank 310 to the connection position of the connecting rod 320 and the crank 310 is the third vector, and in the crank-slider mechanism 300 corresponding to the right pedal 240, the vector pointing from the rotation center of the crank 310 to the connection position of the connecting rod 320 and the crank 310 is the fourth vector. The directions of the third and fourth vectors are opposite. For example, when the left pedal 230 is at its upper limit position and the right pedal 240 is at its lower limit position, in the crank-slider mechanism 300 corresponding to the left pedal 230, the connection position between the connecting rod 320 and the crank 310 is located above the rotation axis of the crank 310, and in the crank-slider mechanism 300 corresponding to the right pedal 240, the connection position between the connecting rod 320 and the crank 310 is located below the rotation axis of the crank 310.

[0101] The phase difference between the crank 310 of the crank-slider mechanism 300 corresponding to the left armrest 210 and the crank 310 of the crank-slider mechanism 300 corresponding to the right foot pedal 240 is 0. This means that at any given time, in the crank-slider mechanism 300 corresponding to the left armrest 210, the vector pointing from the rotation center of the crank 310 to the connection position of the connecting rod 320 and the crank 310 is the first vector, and in the crank-slider mechanism 300 corresponding to the right foot pedal 240, the vector pointing from the rotation center of the crank 310 to the connection position of the connecting rod 320 and the crank 310 is the fourth vector. The first vector and the fourth vector have the same direction. For example, when the left armrest 210 is in the lower limit position and the right foot pedal 240 is in the lower limit position, in the crank-slider mechanism 300 corresponding to the left armrest 210, the connection position of the connecting rod 320 and the crank 310 is located below the rotation axis of the crank 310, and in the crank-slider mechanism 300 corresponding to the right foot pedal 240, the connection position of the connecting rod 320 and the crank 310 is located below the rotation axis of the crank 310.

[0102] The phase difference between the crank 310 of the crank-slider mechanism 300 corresponding to the right armrest 220 and the crank 310 of the crank-slider mechanism 300 corresponding to the left foot pedal 230 is 0. This means that at any given time, in the crank-slider mechanism 300 corresponding to the right armrest 220, the vector pointing from the rotation center of the crank 310 to the connection position of the connecting rod 320 and the crank 310 is the second vector, and in the crank-slider mechanism 300 corresponding to the left foot pedal 230, the vector pointing from the rotation center of the crank 310 to the connection position of the connecting rod 320 and the crank 310 is the third vector. The second and third vectors have the same direction. For example, when the right armrest 220 is in the upper limit position and the left foot pedal 230 is in the upper limit position, in the crank-slider mechanism 300 corresponding to the right armrest 220, the connection position of the connecting rod 320 and the crank 310 is located above the rotation axis of the crank 310. In the crank-slider mechanism 300 corresponding to the left foot pedal 230, the connection position of the connecting rod 320 and the crank 310 is located above the rotation axis of the crank 310.

[0103] By making the phase difference between the crank 310 of the crank-slider mechanism 300 corresponding to the left armrest 210 and the crank 310 of the crank-slider mechanism 300 corresponding to the right armrest 220 180°, and the phase difference between the crank 310 of the crank-slider mechanism 300 corresponding to the left pedal 230 and the crank 310 of the crank-slider mechanism 300 corresponding to the right pedal 240 180°, it is beneficial to make the movement directions of the left armrest 210 and the right armrest 220 opposite, and the movement directions of the left pedal 230 and the right pedal 240 opposite, and to make the movement directions of the left armrest 210 and the right pedal 240 the same, and the movement directions of the right armrest 220 and the left pedal 230 the same.

[0104] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 In some embodiments, the crank 310 of the crank-slider mechanism 300 corresponding to the left armrest 210 and the crank 310 of the crank-slider mechanism 300 corresponding to the left pedal 230 are drive-connected. The crank 310 of the crank-slider mechanism 300 corresponding to the right armrest 220 and the crank 310 of the crank-slider mechanism 300 corresponding to the right pedal 240 are drive-connected.

[0105] The crank 310 of the crank-slider mechanism 300 corresponding to the left armrest 210 and the crank 310 of the crank-slider mechanism 300 corresponding to the left foot pedal 230 can be directly connected. For example, both the crank 310 of the crank-slider mechanism 300 corresponding to the left armrest 210 and the crank 310 of the crank-slider mechanism 300 corresponding to the left foot pedal 230 are gears and mesh with each other. Alternatively, the crank 310 of the crank-slider mechanism 300 corresponding to the left armrest 210 and the crank 310 of the crank-slider mechanism 300 corresponding to the left foot pedal 230 can be indirectly connected through a transmission mechanism 600. The transmission mechanism 600 may include a gear transmission mechanism 610, a belt transmission mechanism 620, a chain transmission mechanism, etc.

[0106] The crank 310 of the crank-slider mechanism 300 corresponding to the right armrest 220 and the crank 310 of the crank-slider mechanism 300 corresponding to the right pedal 240 can be directly connected. For example, both crank 310 of the crank-slider mechanism 300 corresponding to the right armrest 220 and the crank 310 of the crank-slider mechanism 300 corresponding to the right pedal 240 are gears and mesh with each other. Alternatively, the crank 310 of the crank-slider mechanism 300 corresponding to the right armrest 220 and the crank 310 of the crank-slider mechanism 300 corresponding to the right pedal 240 can be indirectly connected through a transmission mechanism 600. The transmission mechanism 600 can be a gear transmission mechanism 610, a belt transmission mechanism 620, a chain transmission mechanism, etc.

[0107] By connecting the crank 310 of the crank-slider mechanism 300 corresponding to the left armrest 210 and the crank 310 of the crank-slider mechanism 300 corresponding to the left pedal 230, it is beneficial to keep the movement directions of the left armrest 210 and the left pedal 230 always opposite. Similarly, by connecting the crank 310 of the crank-slider mechanism 300 corresponding to the right armrest 220 and the crank 310 of the crank-slider mechanism 300 corresponding to the right pedal 240, it is beneficial to keep the movement directions of the right armrest 220 and the right pedal 240 always opposite.

[0108] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4In some embodiments, the rehabilitation chair 10 further includes a first drive shaft 510, which is rotatably disposed on the seat body 100. The crank 310 of the crank-slider mechanism 300 corresponding to the left armrest 210 and the crank 310 of the crank-slider mechanism 300 corresponding to the right armrest 220 are both connected to the first drive shaft 510. The drive mechanism 400 includes a drive member 410, which is drively connected to the first drive shaft 510 and is used to drive the first drive shaft 510 to rotate.

[0109] The first drive shaft 510 can be connected to the seat body 100 via a bearing to reduce the rotational resistance of the first drive shaft 510.

[0110] The crank 310 of the crank-slider mechanism 300 corresponding to the left armrest 210 and the crank 310 of the crank-slider mechanism 300 corresponding to the right armrest 220 are both mounted on the first drive shaft 510. In other words, the first drive shaft 510 connects the crank 310 of the crank-slider mechanism 300 corresponding to the left armrest 210 and the crank 310 of the crank-slider mechanism 300 corresponding to the right armrest 220. When the first drive shaft 510 rotates, it can simultaneously drive the crank 310 of the crank-slider mechanism 300 corresponding to the left armrest 210 and the crank 310 of the crank-slider mechanism 300 corresponding to the right armrest 220 to rotate.

[0111] The drive mechanism 400 may consist of only one drive element 410, which can be connected to the first drive shaft 510 via a coupling to drive the first drive shaft 510 to rotate. Alternatively, the drive element 410 can be connected to the first drive shaft 510 via a transmission mechanism 600 to drive the first drive shaft 510 to rotate. In this way, the movement of the left armrest 210, right armrest 220, left foot pedal 230, and right foot pedal 240 can be achieved with a single drive element 410, meaning that the power source for the raising and lowering of the left armrest 210, right armrest 220, left foot pedal 230, and right foot pedal 240 is the same drive element 410.

[0112] A single drive unit 410 can drive the movements of the left armrest 210, right armrest 220, left foot pedal 230, and right foot pedal 240. On the one hand, this helps improve the synchronicity of the rising and falling of the left armrest 210 and right foot pedal 240, and the synchronicity of the rising and falling of the right armrest 220 and left foot pedal 230, thereby improving the coordination and stability of the patient's limb movements. On the other hand, with only one drive unit 410, the cost of the rehabilitation chair 10 is lower.

[0113] In some embodiments, the rehabilitation chair 10 includes a transmission mechanism 600, and the drive member 410 and the first transmission shaft 510 are connected by the transmission mechanism 600. The transmission mechanism 600 includes one of a gear transmission mechanism 610, a belt transmission mechanism 620, and a chain transmission mechanism.

[0114] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 In some embodiments, the transmission mechanism 600 is a gear transmission mechanism 610, which includes a fifth gear 611 and a fourth gear 612. The fifth gear 611 is connected to the output end of the drive member 410, and the fifth gear 611 meshes with the fourth gear 612. The fourth gear 612 is connected to the first transmission shaft 510.

[0115] In some embodiments, the transmission mechanism 600 is a belt drive mechanism 620, which includes a driving pulley 621, a driven pulley 622, and a second transmission belt 623. The driving pulley 621 is connected to the output end of the drive member 410, the driven pulley 622 is connected to the first drive shaft 510, and the second transmission belt 623 connects the driving pulley 621 and the driven pulley 622. It should be noted that the second transmission belt 623 can be a belt or a synchronous belt.

[0116] In some other embodiments, the transmission mechanism 600 is a chain drive mechanism, which includes a third sprocket, a fourth sprocket, and a second chain. The third sprocket is connected to the output end of the drive member 410, the fourth sprocket is connected to the first drive shaft 510, and the second chain connects the third sprocket and the fourth sprocket.

[0117] When the transmission mechanism 600 is a gear transmission mechanism 610, it has high transmission accuracy, good synchronization, can withstand large torque, and has a long service life. When the transmission mechanism 600 is a belt transmission mechanism 620, it helps to reduce the noise of the rehabilitation chair 10 and reduce the cost of the rehabilitation chair 10. When the transmission mechanism 600 is a chain transmission mechanism, it has high transmission accuracy, good synchronization, and stronger environmental adaptability.

[0118] Please refer to Figure 5 and Figure 6 , Figure 5 This is a schematic diagram of the internal structure of a rehabilitation chair 10 provided for other embodiments of this application. Figure 6 This is a front view schematic diagram of the internal structure of the rehabilitation chair 10 provided in some other embodiments of this application. In some other embodiments, the drive mechanism 400 includes two drive members 410, one drive member 410 is drivenly connected to the crank 310 of the crank-slider mechanism 300 corresponding to the left armrest 210, and the other drive member 410 is drivenly connected to the crank 310 of the crank-slider mechanism 300 corresponding to the right armrest 220.

[0119] The drive unit 410 can be connected to the crank 310 of the crank-slider mechanism 300 corresponding to the left armrest 210 via a coupling. Alternatively, the drive unit 410 can be connected to the crank 310 of the crank-slider mechanism 300 corresponding to the left armrest 210 via a transmission mechanism 600.

[0120] Another drive unit 410 can be connected to the crank 310 of the crank-slider mechanism 300 corresponding to the right armrest 220 via a coupling. Another drive unit 410 can also be connected to the crank 310 of the crank-slider mechanism 300 corresponding to the right armrest 220 via a transmission mechanism 600.

[0121] One drive unit 410 can drive the left armrest 210 and the left foot pedal 230 to move, and the other drive unit 410 can drive the right armrest 220 and the right foot pedal 240 to move. The two drive units 410 can share the load, which helps to extend the life of the drive unit 410 and reduce the heat dissipation requirements.

[0122] Please refer to Figure 5 and Figure 6 In some embodiments, the crank 310 of the crank-slider mechanism 300 is a first gear 311, and the rehabilitation chair 10 includes a second gear 520. The first gear 311 of the crank-slider mechanism 300 corresponding to the left armrest 210 and the first gear 311 of the crank-slider mechanism 300 corresponding to the left foot pedal 230 are both meshed with one second gear 520, and the first gear 311 of the crank-slider mechanism 300 corresponding to the right armrest 220 and the first gear 311 of the crank-slider mechanism 300 corresponding to the right foot pedal 240 are both meshed with another second gear 520. The output end of each drive element 410 is connected to one second gear 520.

[0123] The crank 310 of the crank-slider mechanism 300 is the first gear 311. Along the extension direction of the rotation axis of the first gear 311, the connecting rod 320 is connected to one side of the first gear 311. Furthermore, there is a distance between the connection position of the connecting rod 320 and the first gear 311 and the rotation axis of the first gear 311.

[0124] One second gear 520 meshes with the first gear 311 of the crank-slider mechanism 300 corresponding to the left armrest 210, and also meshes with the first gear 311 of the crank-slider mechanism 300 corresponding to the left pedal 230. Another second gear 520 meshes with the first gear 311 of the crank-slider mechanism 300 corresponding to the right armrest 220, and also meshes with the first gear 311 of the crank-slider mechanism 300 corresponding to the right pedal 240. The output end of one drive member 410 is connected to one second gear 520, and the output end of the other drive member 410 is connected to the other second gear 520.

[0125] The crank 310 of the crank-slider mechanism 300 is the first gear 311. The first gear 311 can be used as the crank 310 of the crank-slider mechanism 300, and can also mesh with the second gear 520 to realize the transmission connection with the drive component 410. One component can realize multiple functions, which helps to simplify the structure of the rehabilitation chair 10. By connecting the output end of each drive component 410 to a second gear 520, space is made reasonable, which helps to reduce the risk of interference between the drive component 410 and other structures, and helps to improve the reliability of the rehabilitation chair 10.

[0126] Please refer to Figure 7 , Figure 8 and Figure 9 In some embodiments, Figure 7 This is a schematic diagram of the internal structure of a rehabilitation chair 10 provided in some embodiments of this application. Figure 8 This is a front view schematic diagram of the internal structure of a rehabilitation chair 10 provided in some embodiments of this application. Figure 9 This is a cross-sectional view of a rehabilitation chair 10 provided in some embodiments of this application. In some embodiments, the rehabilitation chair 10 includes a first pulley 530 and a first transmission belt 540, with the crank 310 of each crank-slider mechanism 300 coaxially arranged with a first pulley 530. The first pulley 530 coaxial with the crank 310 of the crank-slider mechanism 300 corresponding to the left armrest 210 and the first pulley 530 coaxial with the crank 310 of the crank-slider mechanism 300 corresponding to the left foot pedal 230 are connected by a first transmission belt 540, and the first pulley 530 coaxial with the crank 310 of the crank-slider mechanism 300 corresponding to the right armrest 220 and the first pulley 530 coaxial with the crank 310 of the crank-slider mechanism 300 corresponding to the right foot pedal 240 are connected by another first transmission belt 540. One drive unit 410 is connected to the first pulley 530 corresponding to the left handrail 210, and the other drive unit 410 is connected to the first pulley 530 corresponding to the right handrail 220.

[0127] Each crank-slider mechanism 300 has a crank 310 coaxially arranged with a first pulley 530. That is, the crank 310 of a crank-slider mechanism 300 and a first pulley 530 are connected on the same rotating shaft. When the first pulley 530 rotates, it can drive the crank 310 to rotate.

[0128] A first transmission belt 540 connects to a first pulley 530 coaxial with the crank 310 of the crank-slider mechanism 300 corresponding to the left armrest 210 and a first pulley 530 coaxial with the crank 310 of the crank-slider mechanism 300 corresponding to the left foot pedal 230. Another first transmission belt 540 connects to a first pulley 530 coaxial with the crank 310 of the crank-slider mechanism 300 corresponding to the right armrest 220 and a first pulley 530 coaxial with the crank 310 of the crank-slider mechanism 300 corresponding to the right foot pedal 240. In short, the crank 310 of the crank-slider mechanism 300 corresponding to the left armrest 210 and the crank 310 of the crank-slider mechanism 300 corresponding to the left foot pedal 230 are connected by a belt drive mechanism 620, and the crank 310 of the crank-slider mechanism 300 corresponding to the right armrest 220 and the crank 310 of the crank-slider mechanism 300 corresponding to the right foot pedal 240 are connected by another belt drive mechanism 620.

[0129] It should be noted that the first transmission belt 540 can be a belt, the first pulley 530 can be a pulley, the first transmission belt 540 can also be a synchronous belt, and the first pulley 530 can be a synchronous pulley.

[0130] Optionally, the rehabilitation chair 10 also includes a tensioning pulley 550 for tensioning the first drive belt 540.

[0131] The drive unit 410 can be connected to the first pulley 530 corresponding to the left handrail 210 via a coupling, or the drive unit 410 can be connected to the first pulley 530 corresponding to the left handrail 210 via a transmission mechanism 600.

[0132] Another drive unit 410 can be connected to the first pulley 530 corresponding to the right handrail 220 via a coupling, or the other drive unit 410 can be connected to the first pulley 530 corresponding to the right handrail 220 via a transmission mechanism 600.

[0133] The crank 310 of the crank-slider mechanism 300 corresponding to the left armrest 210 and the crank 310 of the crank-slider mechanism 300 corresponding to the left foot pedal 230 are connected by a belt drive mechanism 620. The crank 310 of the crank-slider mechanism 300 corresponding to the right armrest 220 and the crank 310 of the crank-slider mechanism 300 corresponding to the right foot pedal 240 are connected by another belt drive mechanism 620. This helps to reduce the noise of the rehabilitation chair 10 and reduce the cost of the rehabilitation chair 10.

[0134] Please refer to Figure 10 and Figure 11 , Figure 10 This is a schematic diagram of the internal structure of a rehabilitation chair 10 provided in some embodiments of this application. Figure 11This is a cross-sectional view of a rehabilitation chair 10 provided in some embodiments of this application. In some embodiments, the rehabilitation chair 10 includes a first sprocket 561 and a first chain 562, with the crank 310 of each crank-slider mechanism 300 coaxially arranged with a first sprocket 561. The first sprocket 561 coaxial with the crank 310 of the crank-slider mechanism 300 corresponding to the left armrest 210 and the first sprocket 561 coaxial with the crank 310 of the crank-slider mechanism 300 corresponding to the left foot pedal 230 are connected by a first chain 562, and the first sprocket 561 coaxial with the crank 310 of the crank-slider mechanism 300 corresponding to the right armrest 220 and the first sprocket 561 coaxial with the crank 310 of the crank-slider mechanism 300 corresponding to the right foot pedal 240 are connected by another first chain 562. One drive unit 410 is connected to the first sprocket 561 corresponding to the left handrail 210, and the other drive unit 410 is connected to the first sprocket 561 corresponding to the right handrail 220.

[0135] Each crank-slider mechanism 300 has a crank 310 coaxially arranged with a first sprocket 561. That is, the crank 310 of a crank-slider mechanism 300 and a first sprocket 561 are connected on the same rotating shaft. When the first sprocket 561 rotates, it can drive the crank 310 to rotate.

[0136] A first chain 562 connects the first sprocket 561 coaxial with the crank 310 of the crank-slider mechanism 300 corresponding to the left armrest 210 and the first sprocket 561 coaxial with the crank 310 of the crank-slider mechanism 300 corresponding to the left pedal 230. Another first chain 562 connects the first sprocket 561 coaxial with the crank 310 of the crank-slider mechanism 300 corresponding to the right armrest 220 and the first sprocket 561 coaxial with the crank 310 of the crank-slider mechanism 300 corresponding to the right pedal 240. In short, the crank 310 of the crank-slider mechanism 300 corresponding to the left armrest 210 and the crank 310 of the crank-slider mechanism 300 corresponding to the left pedal 230 are connected by a chain drive mechanism, and the crank 310 of the crank-slider mechanism 300 corresponding to the right armrest 220 and the crank 310 of the crank-slider mechanism 300 corresponding to the right pedal 240 are connected by another chain drive mechanism.

[0137] The drive unit 410 can be connected to the first sprocket 561 corresponding to the left handrail 210 via a coupling, or the drive unit 410 can be connected to the first sprocket 561 corresponding to the left handrail 210 via a transmission mechanism 600.

[0138] Another drive unit 410 can be connected to the first sprocket 561 corresponding to the right handrail 220 via a coupling, or the other drive unit 410 can be connected to the first sprocket 561 corresponding to the right handrail 220 via a transmission mechanism 600.

[0139] The crank 310 of the crank-slider mechanism 300 corresponding to the left armrest 210 and the crank 310 of the crank-slider mechanism 300 corresponding to the left foot pedal 230 are connected by a chain drive mechanism. The crank 310 of the crank-slider mechanism 300 corresponding to the right armrest 220 and the crank 310 of the crank-slider mechanism 300 corresponding to the right foot pedal 240 are connected by another chain drive mechanism. This helps to improve the transmission accuracy, the synchronicity of the rise or fall of the left armrest 210 and the right foot pedal 240, and the synchronicity of the rise or fall of the right armrest 220 and the left foot pedal 230, and makes it more adaptable to the environment.

[0140] Please refer to Figures 2-6 In some embodiments, the crank 310 of the crank-slider mechanism 300 is a first gear 311, and the rehabilitation chair 10 includes a second gear 520. The first gear 311 of the crank-slider mechanism 300 corresponding to the left armrest 210 and the first gear 311 of the crank-slider mechanism 300 corresponding to the left foot pedal 230 are both engaged with one second gear 520. The first gear 311 of the crank-slider mechanism 300 corresponding to the right armrest 220 and the first gear 311 of the crank-slider mechanism 300 corresponding to the right foot pedal 240 are both engaged with another second gear 520.

[0141] The crank 310 of the crank-slider mechanism 300 is the first gear 311. The first gear 311 can be used as the crank 310 of the crank-slider mechanism 300, and can also mesh with the second gear 520 to realize the transmission connection with the drive component 410. One component can realize multiple functions, which helps to simplify the structure of the rehabilitation chair 10.

[0142] Please refer to Figure 7 , Figure 8 and Figure 9 In some embodiments, the rehabilitation chair 10 includes a first pulley 530 and a first transmission belt 540, with the crank 310 of each crank-slider mechanism 300 coaxially arranged with a first pulley 530. The first pulley 530 coaxial with the crank 310 of the crank-slider mechanism 300 corresponding to the left armrest 210 and the first pulley 530 coaxial with the crank 310 of the crank-slider mechanism 300 corresponding to the left foot pedal 230 are connected by a first transmission belt 540. The first pulley 530 coaxial with the crank 310 of the crank-slider mechanism 300 corresponding to the right armrest 220 and the first pulley 530 coaxial with the crank 310 of the crank-slider mechanism 300 corresponding to the right foot pedal 240 are connected by another first transmission belt 540.

[0143] The crank 310 of the crank-slider mechanism 300 corresponding to the left armrest 210 and the crank 310 of the crank-slider mechanism 300 corresponding to the left foot pedal 230 are connected by a belt drive mechanism 620. The crank 310 of the crank-slider mechanism 300 corresponding to the right armrest 220 and the crank 310 of the crank-slider mechanism 300 corresponding to the right foot pedal 240 are connected by another belt drive mechanism 620. This helps to reduce the noise of the rehabilitation chair 10 and reduce the cost of the rehabilitation chair 10.

[0144] Please refer to Figure 10 and Figure 11 In some embodiments, the rehabilitation chair 10 includes a first sprocket 561 and a first chain 562, with the crank 310 of each crank-slider mechanism 300 coaxially arranged with a first sprocket 561. The first sprocket 561 coaxial with the crank 310 of the crank-slider mechanism 300 corresponding to the left armrest 210 and the first sprocket 561 coaxial with the crank 310 of the crank-slider mechanism 300 corresponding to the left foot pedal 230 are connected by a first chain 562. The first sprocket 561 coaxial with the crank 310 of the crank-slider mechanism 300 corresponding to the right armrest 220 and the first sprocket 561 coaxial with the crank 310 of the crank-slider mechanism 300 corresponding to the right foot pedal 240 are connected by another first chain 562.

[0145] The crank 310 of the crank-slider mechanism 300 corresponding to the left armrest 210 and the crank 310 of the crank-slider mechanism 300 corresponding to the left foot pedal 230 are connected by a chain drive mechanism. The crank 310 of the crank-slider mechanism 300 corresponding to the right armrest 220 and the crank 310 of the crank-slider mechanism 300 corresponding to the right foot pedal 240 are connected by another chain drive mechanism. This helps to improve the transmission accuracy, the synchronicity of the rise or fall of the left armrest 210 and the right foot pedal 240, and the synchronicity of the rise or fall of the right armrest 220 and the left foot pedal 230, and makes it more adaptable to the environment.

[0146] Please refer to Figure 12 and Figure 13 In some embodiments, Figure 12 The present application also provides internal structural schematic diagrams of the rehabilitation chair 10 according to some embodiments. Figure 13 This is a front view schematic diagram of the internal structure of the rehabilitation chair 10 provided in some embodiments of this application. In some embodiments, the crank 310 of the crank-slider mechanism 300 corresponding to the left armrest 210 and the crank 310 of the crank-slider mechanism 300 corresponding to the right armrest 220 are drive-connected. The crank 310 of the crank-slider mechanism 300 corresponding to the left foot pedal 230 and the crank 310 of the crank-slider mechanism 300 corresponding to the right foot pedal 240 are drive-connected.

[0147] The crank 310 of the crank-slider mechanism 300 corresponding to the left armrest 210 and the crank 310 of the crank-slider mechanism 300 corresponding to the right armrest 220 can be connected by a transmission mechanism 600. The transmission mechanism 600 may consist only of a drive shaft, or it may include a drive shaft and other transmission structures, such as a gear transmission mechanism 610, a belt transmission mechanism 620, a chain transmission mechanism, etc.

[0148] The crank 310 of the crank-slider mechanism 300 corresponding to the left pedal 230 and the crank 310 of the crank-slider mechanism 300 corresponding to the right pedal 240 can be connected by a transmission mechanism 600. The transmission mechanism 600 may consist only of a drive shaft, or it may include a drive shaft and other transmission structures, such as a gear transmission mechanism 610, a belt transmission mechanism 620, a chain transmission mechanism, etc.

[0149] By connecting the crank 310 of the crank-slider mechanism 300 corresponding to the left armrest 210 and the crank 310 of the crank-slider mechanism 300 corresponding to the right armrest 220, it is beneficial to keep the movement directions of the left armrest 210 and the right armrest 220 always opposite. Similarly, by connecting the crank 310 of the crank-slider mechanism 300 corresponding to the left pedal 230 and the crank 310 of the crank-slider mechanism 300 corresponding to the right pedal 240, it is beneficial to keep the movement directions of the left pedal 230 and the right pedal 240 always opposite.

[0150] Please refer to Figure 12 and Figure 13 In some embodiments, the rehabilitation chair 10 further includes a first drive shaft 510, which is rotatably disposed on the seat body 100. The crank 310 of the crank-slider mechanism 300 corresponding to the left armrest 210 and the crank 310 of the crank-slider mechanism 300 corresponding to the right armrest 220 are both connected to the first drive shaft 510. The rehabilitation chair 10 also includes a second drive shaft 572, which is drively connected to the crank 310 of the crank-slider mechanism 300 corresponding to the left footrest 230 and the crank 310 of the crank-slider mechanism 300 corresponding to the right footrest 240. The drive mechanism 400 includes two drive members 410, one drive member 410 being drively connected to the first drive shaft 510 and the other drive member 410 being drively connected to the second drive shaft 572.

[0151] The first drive shaft 510 can be connected to the seat body 100 via a bearing to reduce the rotational resistance of the first drive shaft 510.

[0152] The crank 310 of the crank-slider mechanism 300 corresponding to the left armrest 210 and the crank 310 of the crank-slider mechanism 300 corresponding to the right armrest 220 are both mounted on the first drive shaft 510. In other words, the first drive shaft 510 connects the crank 310 of the crank-slider mechanism 300 corresponding to the left armrest 210 and the crank 310 of the crank-slider mechanism 300 corresponding to the right armrest 220. When the first drive shaft 510 rotates, it can simultaneously drive the crank 310 of the crank-slider mechanism 300 corresponding to the left armrest 210 and the crank 310 of the crank-slider mechanism 300 corresponding to the right armrest 220 to rotate.

[0153] The second drive shaft 572 can be connected to the seat body 100 via a bearing to reduce the rotational resistance of the second drive shaft 572.

[0154] The crank 310 of the crank-slider mechanism 300 corresponding to the left pedal 230 can be mounted on the second drive shaft 572 to achieve a transmission connection with the second drive shaft 572. Alternatively, the crank 310 of the crank-slider mechanism 300 corresponding to the left pedal 230 may not be mounted on the second drive shaft 572, but can be connected to the second drive shaft 572 through other transmission mechanisms 600.

[0155] The crank 310 of the crank-slider mechanism 300 corresponding to the right pedal 240 can be mounted on the second drive shaft 572 to achieve a transmission connection with the second drive shaft 572. Alternatively, the crank 310 of the crank-slider mechanism 300 corresponding to the right pedal 240 may not be mounted on the second drive shaft 572, but can be connected to the second drive shaft 572 through other transmission mechanisms 600.

[0156] In short, the second drive shaft 572 drives the crank 310 of the crank-slider mechanism 300 corresponding to the left pedal 230 and the crank 310 of the crank-slider mechanism 300 corresponding to the right pedal 240. When the second drive shaft 572 rotates, it can simultaneously drive the crank 310 of the crank-slider mechanism 300 corresponding to the left pedal 230 and the crank 310 of the crank-slider mechanism 300 corresponding to the right pedal 240 to rotate.

[0157] The drive unit 410 can be connected to the first drive shaft 510 via a coupling, or the drive unit 410 can be connected to the first drive shaft 510 via a transmission mechanism 600.

[0158] Another drive unit 410 can be connected via a coupling and a second drive shaft 572, or it can be connected via a transmission mechanism 600 and a second drive shaft 572.

[0159] Both the crank 310 of the crank-slider mechanism 300 corresponding to the left armrest 210 and the crank 310 of the crank-slider mechanism 300 corresponding to the right armrest 220 are connected to the first transmission shaft 510. Thus, when the left armrest 210 rises, the right armrest 220 falls. When the left armrest 210 falls, the right armrest 220 rises, which helps maintain the opposite directions of movement for the left and right armrests 210 and 220. The second transmission shaft 572 is connected to the crank 310 of the crank-slider mechanism 300 corresponding to the left pedal 230, and also to the crank 310 of the crank-slider mechanism 300 corresponding to the right pedal 240. Thus, when the left pedal 230 rises, the right pedal 240 falls. When the left pedal 230 falls, the right pedal 240 rises, which helps maintain the opposite directions of movement for the left and right pedals 230 and 240.

[0160] Please refer to Figure 12 and Figure 13 In some embodiments, the crank 310 of the crank-slider mechanism 300 is a first gear 311, and the rehabilitation chair 10 includes a second gear 520 and a third gear 571. The first gear 311 and the third gear 571 of the crank-slider mechanism 300 corresponding to the left foot pedal 230 are both meshed with a second gear 520. The first gear 311 and the other third gear 571 of the crank-slider mechanism 300 corresponding to the right foot pedal 240 are both meshed with the other second gear 520. Both third gears 571 are connected to a second drive shaft 572.

[0161] One second gear 520 meshes with the first gear 311 of the crank-slider mechanism 300 corresponding to the left pedal 230, and also meshes with a third gear 571. Another second gear 520 meshes with the first gear 311 of the crank-slider mechanism 300 corresponding to the right pedal 240, and also meshes with another third gear 571. Both third gears 571 are mounted on a second drive shaft 572. When the second drive shaft 572 rotates, it drives the two third gears 571 to rotate, which in turn drives the two second gears 520 to rotate. The two second gears 520, in turn, drive the first gears 311 of the crank-slider mechanism 300 corresponding to the left pedal 230 and the first gear 311 of the crank-slider mechanism 300 corresponding to the right pedal 240 to rotate.

[0162] The crank 310 of the crank-slider mechanism 300 is the first gear 311. The first gear 311 can be used as the crank 310 of the crank-slider mechanism 300, and can also mesh with the second gear 520 to realize the transmission connection with the drive component 410. One component can realize multiple functions, which helps to simplify the structure of the rehabilitation chair 10. By connecting both third gears 571 to the second transmission shaft 572, one third gear 571 is transmitted through a second gear 520 and the crank 310 of the crank-slider mechanism 300 corresponding to the left foot pedal 230, and the other third gear 571 is transmitted through another second gear 520 and the crank 310 of the crank-slider mechanism 300 corresponding to the right foot pedal 240. This helps to keep the movement directions of the left foot pedal 230 and the right foot pedal 240 opposite.

[0163] Please refer to Figure 14 and Figure 15 , Figure 14 This is a schematic diagram of the internal structure of a rehabilitation chair 10 provided in some other embodiments of this application. Figure 15 This is a front view schematic diagram of the internal structure of a rehabilitation chair 10 provided in some other embodiments of this application. In some other embodiments, the rehabilitation chair 10 includes a first pulley 530, a second pulley 573, and a first transmission belt 540. The crank 310 of each crank-slider mechanism 300 is coaxially arranged with a first pulley 530. The first pulley 530 and a second pulley 573, coaxial with the crank 310 of the crank-slider mechanism 300 corresponding to the left foot pedal 230, are connected by a first transmission belt 540. The first pulley 530 and another second pulley 573, coaxial with the crank 310 of the crank-slider mechanism 300 corresponding to the right foot pedal 240, are connected by another first transmission belt 540. Both second pulleys 573 are connected to a second transmission shaft 572.

[0164] A first drive belt 540 connects a first pulley 530 and a second pulley 573 coaxially with the crank 310 of the crank-slider mechanism 300 corresponding to the left pedal 230. Another first drive belt 540 connects a first pulley 530 and another second pulley 573 coaxially with the crank 310 of the crank-slider mechanism 300 corresponding to the right pedal 240. Both second pulleys 573 are mounted on a second drive shaft 572. In short, the crank 310 and the second drive shaft 572 of the crank-slider mechanism 300 corresponding to the left pedal 230 are connected via a belt drive mechanism 620, and the crank 310 and the second drive shaft 572 of the crank-slider mechanism 300 corresponding to the right pedal 240 are connected via another belt drive mechanism 620.

[0165] It should be noted that the first transmission belt 540 can be a belt, and the first pulley 530 and the second pulley 573 can be pulleys. Alternatively, the first transmission belt 540 can be a synchronous belt, and the first pulley 530 and the second pulley 573 can be synchronous pulleys.

[0166] The crank 310 and the second drive shaft 572 of the crank-slider mechanism 300 corresponding to the left foot pedal 230 are connected by a belt drive mechanism 620, and the crank 310 and the second drive shaft 572 of the crank-slider mechanism 300 corresponding to the right foot pedal 240 are connected by another belt drive mechanism 620. This helps to keep the left foot pedal 230 and the right foot pedal 240 moving in opposite directions, which helps to reduce the noise of the rehabilitation chair 10 and reduce the cost of the rehabilitation chair 10.

[0167] Please refer to Figure 16 , Figure 16 This is a schematic diagram of the internal structure of a rehabilitation chair 10 provided in some other embodiments of this application. In some other embodiments, the rehabilitation chair 10 includes a first sprocket 561, a second sprocket 563, and a first chain 562. The crank 310 of each crank-slider mechanism 300 is coaxially arranged with a first sprocket 561. The first sprocket 561 and the second sprocket 563, coaxial with the crank 310 of the crank-slider mechanism 300 corresponding to the left foot pedal 230, are connected by a first chain 562. The first sprocket 561 and the other second sprocket 563, coaxial with the crank 310 of the crank-slider mechanism 300 corresponding to the right foot pedal 240, are connected by another first chain 562. Both second sprockets 563 are connected to a second drive shaft 572.

[0168] A first chain 562 connects a first sprocket 561 and a second sprocket 563 coaxially with the crank 310 of the crank-slider mechanism 300 corresponding to the left pedal 230. Another first chain 562 connects a first sprocket 561 and another second sprocket 563 coaxially with the crank 310 of the crank-slider mechanism 300 corresponding to the right pedal 240. Both second sprockets 563 are mounted on a second drive shaft 572. In short, the crank 310 and the second drive shaft 572 of the crank-slider mechanism 300 corresponding to the left pedal 230 are connected via a chain drive mechanism, and the crank 310 and the second drive shaft 572 of the crank-slider mechanism 300 corresponding to the right pedal 240 are connected via another chain drive mechanism.

[0169] The crank 310 and the second drive shaft 572 of the crank-slider mechanism 300 corresponding to the left pedal 230 are connected by a chain drive mechanism, and the crank 310 and the second drive shaft 572 of the crank-slider mechanism 300 corresponding to the right pedal 240 are connected by another chain drive mechanism. This helps to improve transmission accuracy, keep the left pedal 230 and the right pedal 240 moving in opposite directions, and has stronger environmental adaptability.

[0170] In some embodiments, the rehabilitation chair 10 includes a transmission mechanism 600, wherein one drive member 410 is connected to a first drive shaft 510 via the transmission mechanism 600, and another drive member 410 is connected to a second drive shaft 572 via another transmission mechanism 600. The transmission mechanism 600 includes one of a gear transmission mechanism 610, a belt transmission mechanism 620, and a chain transmission mechanism.

[0171] In some embodiments, the two transmission mechanisms 600 have the same structure; for example, both transmission mechanisms 600 are gear transmission mechanisms 610.

[0172] In other embodiments, the two transmission mechanisms 600 have different structures. For example, one transmission mechanism 600 is a gear transmission mechanism 610, and the other transmission mechanism 600 is a belt transmission mechanism 620.

[0173] When the transmission mechanism 600 is a gear transmission mechanism 610, it has high transmission accuracy, good synchronization, can withstand large torque, and has a long service life. When the transmission mechanism 600 is a belt transmission mechanism 620, it helps to reduce the noise of the rehabilitation chair 10 and reduce the cost of the rehabilitation chair 10. When the transmission mechanism 600 is a chain transmission mechanism, it has high transmission accuracy, good synchronization, and stronger environmental adaptability.

[0174] In some embodiments, the output of one drive member 410 is connected to the first drive shaft 510, and / or the output of another drive member 410 is connected to the second drive shaft 572.

[0175] The output end of one drive unit 410 can be connected to the first drive shaft 510 via a coupling. The output end of the other drive unit 410 can be connected to the second drive shaft 572 via a coupling.

[0176] When the output end of one drive element 410 is connected to the first drive shaft 510, it helps to reduce the number of transmission mechanisms 600 and lower the production cost of the rehabilitation chair 10. Similarly, when the output end of another drive element 410 is connected to the second drive shaft 572, it helps to reduce the number of transmission mechanisms 600 and lower the production cost of the rehabilitation chair 10.

[0177] Please refer to Figure 17 and Figure 18 In some embodiments, Figure 17 This is a schematic diagram of the internal structure of a rehabilitation chair 10 provided in some other embodiments of this application. Figure 18This is a front view schematic diagram of the internal structure of the rehabilitation chair 10 provided in some other embodiments of this application. In some other embodiments, the drive mechanism 400 includes four drive members 410 and a controller. Each drive member 410 is driveably connected to a crank 310 of a crank-slider mechanism 300. The controller is electrically connected to the four drive members 410 and is configured to control the operating state of the four drive members 410 to achieve synchronous raising or lowering of the left armrest 210 and the right footrest 240, and synchronous raising or lowering of the right armrest 220 and the left footrest 230.

[0178] A controller is a master control device that controls the starting, speed regulation, braking, and reversing of the drive unit 410 by changing the wiring of the main circuit or control circuit and changing the resistance value in the circuit according to a predetermined sequence.

[0179] The controller can be a microcontroller, CPU (Central Processing Unit), ECU (Electronic Control Unit), etc.

[0180] In an embodiment where the phase difference between the crank 310 of the crank-slider mechanism 300 corresponding to the left armrest 210 and the crank 310 of the crank-slider mechanism 300 corresponding to the right armrest 220 is 180°, the controller can control the four drive components 410 to start and stop simultaneously and maintain the same speed, so that the left armrest 210 and the right armrest 220 move in opposite directions, and the left pedal 230 and the right pedal 240 move in opposite directions, and the left armrest 210 and the right pedal 240 move in the same direction, and the right armrest 220 and the left pedal 230 move in the same direction.

[0181] In some other embodiments, the phase difference between the crank 310 of the crank-slider mechanism 300 corresponding to the left armrest 210 and the crank 310 of the crank-slider mechanism 300 corresponding to the right armrest 220 is 0. At this time, the controller can control the drive member 410 corresponding to the left armrest 210, the drive member 410 corresponding to the right armrest 220, the drive member 410 corresponding to the left foot pedal 230, and the drive member 410 corresponding to the right foot pedal 240 to start in a preset order, so that the movement directions of the left armrest 210 and the right armrest 220 are opposite, and the movement directions of the left foot pedal 230 and the right foot pedal 240 are opposite, so that the movement directions of the left armrest 210 and the right foot pedal 240 are the same, and the movement directions of the right armrest 220 and the left foot pedal 230 are the same.

[0182] The drive mechanism 400 includes four drive components 410, which are used to drive the left armrest 210, right armrest 220, left foot pedal 230 and right foot pedal 240 respectively. The four drive components 410 can share the load, which helps to extend the life of the drive components 410 and reduce the heat dissipation requirements.

[0183] Please refer to Figure 17 and Figure 18 In some embodiments, the crank 310 of the crank-slider mechanism 300 is a first gear 311, and the rehabilitation chair 10 includes a second gear 520, with one first gear 311 meshing with one second gear 520. The output end of each drive element 410 is connected to one second gear 520.

[0184] Optionally, the speed ratio of the first gear 311 to the second gear 520 is greater than 1, so as to achieve speed reduction and torque increase.

[0185] The crank 310 of the crank-slider mechanism 300 is the first gear 311. The first gear 311 can be used as the crank 310 of the crank-slider mechanism 300, and can also mesh with the second gear 520 to realize the transmission connection with the drive member 410. One component can realize multiple functions, which helps to simplify the structure of the rehabilitation chair 10. The output end of each drive member 410 is connected to the first gear 311 through a second gear 520, which helps to adjust the torque and speed of the first gear 311, so that the speed of the moving part 200 rising or falling is moderate.

[0186] Please refer to Figure 19 and Figure 20 , Figure 19 This is a schematic diagram of the internal structure of a rehabilitation chair 10 provided in some further embodiments of this application. Figure 20 This is a front view schematic diagram of the internal structure of a rehabilitation chair 10 provided in some embodiments of this application. In some embodiments, the rehabilitation chair 10 includes a transmission mechanism 600, and each drive member 410 is connected to the crank 310 of a crank-slider mechanism 300 via a transmission mechanism 600. The transmission mechanism 600 includes one of a gear transmission mechanism 610, a belt transmission mechanism 620, and a chain transmission mechanism.

[0187] Please refer to Figure 19 and Figure 20 In the embodiment shown in the figure, the transmission mechanism 600 is a belt drive mechanism 620. The belt drive mechanism 620 includes a driving pulley 621, a driven pulley 622, and a second transmission belt 623. The driving pulley 621 is connected to the output end of the drive member 410, and the driven pulley 622 is coaxially arranged with the crank 310 of the crank-slider mechanism 300. The second transmission belt 623 connects the driving pulley 621 and the driven pulley 622. It should be noted that the second transmission belt 623 can be a belt or a synchronous belt.

[0188] When the transmission mechanism 600 is a gear transmission mechanism 610, it has high transmission accuracy, good synchronization, can withstand large torque, and has a long service life. When the transmission mechanism 600 is a belt transmission mechanism 620, it helps to reduce the noise of the rehabilitation chair 10 and reduce the cost of the rehabilitation chair 10. When the transmission mechanism 600 is a chain transmission mechanism, it has high transmission accuracy, good synchronization, and stronger environmental adaptability.

[0189] It should be noted that when the drive mechanism 400 includes multiple drive components 410, the user can individually activate one or more drive components 410 as needed, thereby driving the corresponding movable component 200 to move. This makes it suitable for patients with unilateral hemiplegia, hand or foot injuries that preclude movement, or varying degrees of hand and foot rehabilitation.

[0190] Please refer to Figure 21 , Figure 22 and Figure 23 , Figure 21 for Figure 17 A magnified view of position A in the middle. Figure 22 for Figure 19 A magnified view of position B in the middle. Figure 23 This is a front view schematic diagram of the internal structure of the rehabilitation chair 10 provided in some embodiments of this application. In some embodiments, the crank-slider mechanism 300 includes a crank 310, a connecting rod 320, and a slider 330, with both ends of the connecting rod 320 rotatably connected to the crank 310 and the slider 330, respectively. A plurality of first adjustment holes 313 are spaced apart on the crank 310, and the distances between the plurality of first adjustment holes 313 and the rotation axis of the crank 310 are different. The connecting rod 320 is selectively connected to one of the first adjustment holes 313.

[0191] The first adjustment hole 313 can be a through hole provided in the crank 310, extending through two opposing surfaces of the crank 310 along the extension direction of the crank 310's rotation axis. Alternatively, the first adjustment hole 313 can be a blind hole provided in the crank 310, recessed from one side of the crank 310 to the other side along the extension direction of the crank 310's rotation axis.

[0192] The crank 310 may be provided with two, three, four, or more first adjusting holes 313. The multiple first adjusting holes 313 are spaced apart; they may be arranged along a certain direction or dispersed throughout the crank 310. The different distances between the multiple first adjusting holes 313 and the winding axis of the crank 310 result in different lifting ranges for the corresponding moving part 200 when the connecting rod 320 is connected to different first adjusting holes 313.

[0193] When the connecting rod 320 is connected to different first adjustment holes 313, the moving part 200 rises and falls to different degrees. The patient can adjust the connection position between the connecting rod 320 and the crank 310 as needed, thereby improving the exercise effect.

[0194] In some embodiments, the crank 310 of the crank-slider mechanism 300 is a first gear 311, and a plurality of first adjusting holes 313 are arranged radially spaced along the first gear 311. Alternatively, the crank 310 of the crank-slider mechanism 300 is a turntable 312, and a plurality of first adjusting holes 313 are arranged radially spaced along the turntable 312. Alternatively, the crank 310 of the crank-slider mechanism 300 extends along a first direction, and a plurality of first adjusting holes 313 are arranged spaced along the first direction.

[0195] Please refer to Figure 21 In the embodiment shown in the figure, the crank 310 of the crank-slider mechanism 300 is a first gear 311, and a plurality of first adjustment holes 313 are spaced apart along the radial direction of the first gear 311.

[0196] Please refer to Figure 22 In the embodiment shown in the figure, the crank 310 of the crank-slider mechanism 300 is a turntable 312, and a plurality of first adjustment holes 313 are spaced apart along the radial direction of the turntable 312.

[0197] Please refer to Figure 23 In the embodiment shown in the figure, the crank 310 of the crank-slider mechanism 300 is a rod-shaped structure. The crank 310 extends along a first direction, which is the length direction of the crank 310, and a plurality of first adjustment holes 313 are spaced apart along the first direction. That is, the arrangement direction of the plurality of first adjustment holes 313 is the same as the extension direction of the crank 310.

[0198] When crank 310 is the first gear 311, the first gear 311 can mesh with other gears to achieve transmission. Multiple first adjustment holes 313 are radially spaced along the first gear 311, allowing the patient to adjust the connection position between connecting rod 320 and the first gear 311 as needed to adjust the rising and falling amplitude of the movable part 200. When crank 310 is a turntable 312, the center of gravity of the turntable 312 is less likely to shift during rotation, which helps improve the stability of the rehabilitation chair 10. Multiple first adjustment holes 313 are radially spaced along the turntable 312, allowing the patient to adjust the connection position between connecting rod 320 and the turntable 312 as needed to adjust the rising and falling amplitude of the movable part 200. When crank 310 extends along the first direction, its weight is lighter, which helps reduce the weight of the rehabilitation chair 10. Multiple first adjustment holes 313 are radially spaced along the first direction, allowing the patient to adjust the connection position between connecting rod 320 and crank 310 as needed to adjust the rising and falling amplitude of the movable part 200.

[0199] Please refer to Figure 22 and Figure 23 In some embodiments, the crank-slider mechanism 300 includes a crank 310, a connecting rod 320, and a slider 330. The two ends of the connecting rod 320 are rotatably connected to the crank 310 and the slider 330, respectively. The slider 330 is provided with a plurality of second adjustment holes 331, which are spaced apart along the vertical direction. The connecting rod 320 is selectively connected to one of the second adjustment holes 331.

[0200] The second adjustment hole 331 can be a through hole provided in the slider 330, and the second adjustment hole 331 penetrates through two oppositely disposed surfaces of the slider 330 along the thickness direction of the slider 330. The second adjustment hole 331 can also be a blind hole provided in the slider 330, and the second adjustment hole 331 is recessed from one surface of the slider 330 to the other surface along the thickness direction of the slider 330.

[0201] The slider 330 can be provided with two, three, four, or more second adjustment holes 331. The multiple second adjustment holes 331 are spaced apart, and the multiple second adjustment holes 331 are spaced apart in the vertical direction, so that when the connecting rod 320 is connected to different second adjustment holes 331, the upper limit position of the movable part 200 is different (the lower limit position will also be different).

[0202] When the connecting rod 320 is connected to different second adjustment holes 331, the upper and lower limit positions of the movable part 200 can be adjusted to accommodate the patient's height. The patient can adjust the connection position between the connecting rod 320 and the slider 330 as needed to improve comfort.

[0203] Please refer to Figure 24 and Figure 25 , Figure 24 This is a schematic diagram of the internal structure of a rehabilitation chair 10 provided in some other embodiments of this application. Figure 25 This is a front view schematic diagram of the internal structure of a rehabilitation chair 10 provided in some other embodiments of this application. In some embodiments, the seat body 100 includes a left support 110, a right support 120, and a seat support 130, with the seat support 130 connecting the left support 110 and the right support 120. A crank-slider mechanism 300 corresponding to the left armrest 210 and a crank-slider mechanism 300 corresponding to the left foot pedal 230 are both disposed on the left support 110, and both the left armrest 210 and the left foot pedal 230 are movably disposed on the left support 110 in the vertical direction. A crank-slider mechanism 300 corresponding to the right armrest 220 and a crank-slider mechanism 300 corresponding to the right foot pedal 240 are both disposed on the right support 120, and both the right armrest 220 and the right foot pedal 240 are movably disposed on the right support 120 in the vertical direction.

[0204] Please refer to Figure 24The left and right directions are the Y-direction shown in the figure.

[0205] In some embodiments, the left bracket 110 and the right bracket 120 are spaced apart in the left-right direction.

[0206] In some embodiments, the base bracket 130 may connect the left bracket 110 and the right bracket 120 by means of welding or fastener connection.

[0207] The crank-slider mechanism 300 corresponding to the left armrest 210 and the crank-slider mechanism 300 corresponding to the left foot pedal 230 are both located inside the left bracket 110, so that the left bracket 110 can protect the crank-slider mechanism 300 corresponding to the left armrest 210 and the crank-slider mechanism 300 corresponding to the left foot pedal 230.

[0208] The crank-slider mechanism 300 corresponding to the right armrest 220 and the crank-slider mechanism 300 corresponding to the right foot pedal 240 are both located inside the right bracket 120, so that the right bracket 120 can protect the crank-slider mechanism 300 corresponding to the right armrest 220 and the crank-slider mechanism 300 corresponding to the right foot pedal 240.

[0209] The crank-slider mechanism 300 corresponding to the left armrest 210 and the crank-slider mechanism 300 corresponding to the left foot pedal 230 are both mounted on the left support 110. Both the left armrest 210 and the left foot pedal 230 are movably mounted on the left support 110 in the vertical direction. This protects these mechanisms from damage by the left support 110. Similarly, the crank-slider mechanism 300 corresponding to the right armrest 220 and the right foot pedal 240 are both mounted on the right support 120. Both mechanisms are movably mounted on the right support 120 in the vertical direction. This protects these mechanisms from damage by the right support 120. The patient can sit on the seat frame 130, which provides good support.

[0210] Please refer to Figure 24 and Figure 25 In some embodiments, the left support 110 includes a left top plate 111, which has a first through hole 1111, and the left handrail 210 is movably inserted through the first through hole 1111 in the vertical direction. And / or the right support 120 includes a right top plate 121, which has a second through hole 1211, and the right handrail 220 is movably inserted through the second through hole 1211 in the vertical direction.

[0211] The left top plate 111 is provided with a first through hole 1111, which extends through the left top plate 111 in the vertical direction. The left handrail 210 is movably inserted through the first through hole 1111 in the vertical direction, and will not disengage from the first through hole 1111 during the stroke of the left handrail 210.

[0212] The right top plate 121 is provided with a second through hole 1211, which extends through the right top plate 121 in the vertical direction. The right handrail 220 is movably inserted through the second through hole 1211 in the vertical direction, and will not disengage from the second through hole 1211 during the stroke of the right handrail 220.

[0213] Regardless of whether the left armrest 210 is in its upper or lower limit position, it is always inserted through the first through hole 1111 and will not detach from it. This makes it difficult for the patient to put their hand between the left armrest 210 and the left top plate 111, thus reducing the risk of injury and improving the safety of the rehabilitation chair 10. Similarly, regardless of whether the right armrest 220 is in its upper or lower limit position, it is always inserted through the second through hole 1211 and will not detach from it. This also makes it difficult for the patient to put their hand between the right armrest 220 and the right top plate 121, reducing the risk of injury and improving the safety of the rehabilitation chair 10.

[0214] Please refer to Figure 23 In some embodiments, the left support 110 includes a left top plate 111, and a left handrail 210 is located above the left top plate 111. The left top plate 111 is provided with a first through hole 1111. The left handrail 210 and the slider 330 of the crank-slider mechanism 300 corresponding to the left handrail 210 are connected by a first guide rod 710, which is movably inserted through the first through hole 1111 in the vertical direction. And / or the right support 120 includes a right top plate 121, and a right handrail 220 is located above the right top plate 121. The right top plate 121 is provided with a second through hole 1211. The right handrail 220 and the slider 330 of the crank-slider mechanism 300 corresponding to the right handrail 220 are connected by a second guide rod 720, which is movably inserted through the second through hole 1211 in the vertical direction.

[0215] The left armrest 210 is located entirely above the left top plate 111. One end of the first guide rod 710 is connected to the bottom of the left armrest 210, and the other end is connected to the slider 330 of the crank-slider mechanism 300 corresponding to the left armrest 210. The first guide rod 710 is movably inserted through the first through hole 1111 in the vertical direction. When the slider 330 of the crank-slider mechanism 300 corresponding to the left armrest 210 rises, the left armrest 210 rises under the push of the first guide rod 710. When the slider 330 of the crank-slider mechanism 300 corresponding to the left armrest 210 falls, the left armrest 210 falls under the drive of the first guide rod 710.

[0216] There can be only one first guide rod 710, or there can be multiple first guide rods 710.

[0217] The right armrest 220 is located entirely above the right top plate 121. One end of the second guide rod 720 is connected to the bottom of the right armrest 220, and the other end is connected to the slider 330 of the crank-slider mechanism 300 corresponding to the right armrest 220. The second guide rod 720 is movably inserted through the second through hole 1211 in the vertical direction. When the slider 330 of the crank-slider mechanism 300 corresponding to the right armrest 220 rises, the right armrest 220 rises under the push of the second guide rod 720. When the slider 330 of the crank-slider mechanism 300 corresponding to the right armrest 220 falls, the right armrest 220 falls under the drive of the second guide rod 720.

[0218] There can be only one second guide rod 720, or there can be multiple second guide rods 720.

[0219] The left armrest 210 is located above the left top plate 111. The first guide rod 710 connects the left armrest 210 and the slider 330 of the crank-slider mechanism 300 corresponding to the left armrest 210. This helps to reduce the vertical dimension of the left armrest 210 and lower the cost of the rehabilitation chair 10. Similarly, the right armrest 220 is located above the right top plate 121. The second guide rod 720 connects the right armrest 220 and the slider 330 of the crank-slider mechanism 300 corresponding to the right armrest 220. This helps to reduce the vertical dimension of the right armrest 220 and lower the cost of the rehabilitation chair 10.

[0220] Please refer to Figure 26 , Figure 27 and Figure 28 , Figure 26 This is a structural schematic diagram of a rehabilitation chair 10 provided for other embodiments of this application. Figure 27 This is a schematic diagram of the structure of a massage mechanism 800 provided in some embodiments of this application. Figure 28This is a cross-sectional view of a massage mechanism 800 provided in some embodiments of this application. In some embodiments, the rehabilitation chair 10 includes a seat panel 150 and a massage mechanism 800. The seat panel 150 is disposed on the seat body 100, and the massage mechanism 800 is movably disposed on the seat panel 150 in the vertical direction. A drive mechanism 400 is used to drive the massage mechanism 800 to move in the vertical direction.

[0221] The seat panel 150 is located above and connected to the seat support 130. The patient can sit directly on the seat panel 150, or a cushion can be placed on the seat panel 150 and the patient can sit on the cushion.

[0222] The massage mechanism 800 is movably mounted on the seat panel 150 in the vertical direction. The massage mechanism 800 can rise and fall at a preset frequency to massage the patient.

[0223] The drive mechanism 400 is also used to drive the massage mechanism 800 to move in the vertical direction. The drive mechanism 400 can drive the left armrest 210, right armrest 220, left foot pedal 230, right foot pedal 240 and massage mechanism 800 to move in the vertical direction through one drive member 410. The drive mechanism 400 can also drive the left armrest 210, right armrest 220, left foot pedal 230, right foot pedal 240 and massage mechanism 800 to move in the vertical direction through multiple drive members 410.

[0224] The seat panel 150 is located on the seat body 100. The patient can sit on the seat panel 150 and the massage mechanism 800 can massage the patient to improve blood circulation and help the patient recover.

[0225] Please refer to Figure 26 , Figure 27 and Figure 28 In some embodiments, the rehabilitation chair 10 includes a plurality of massage mechanisms 800, including a left massage mechanism 810 and a right massage mechanism 820. The left massage mechanism 810 rises or falls synchronously with the right foot pedal 240, and the right massage mechanism 820 rises or falls synchronously with the left foot pedal 230.

[0226] The rehabilitation chair 10 may include two massage units 800, three massage units 800, four massage units 800, or more massage units 800.

[0227] Multiple massage mechanisms 800 include a left massage mechanism 810 and a right massage mechanism 820, which can be spaced apart in the left-right direction.

[0228] When the left foot pedal 230 rises, the left massage mechanism 810 descends. When the left foot pedal 230 descends, the left massage mechanism 810 rises. When the right foot pedal 240 rises, the right massage mechanism 820 descends. When the right foot pedal 240 descends, the right massage mechanism 820 rises.

[0229] When the right foot pedal 240 rises, the left foot pedal 230 falls. At this time, the patient's left buttock makes closer contact with the seat panel 150 than the right buttock. The left massage mechanism 810 rises to massage the patient's left buttock, providing a better massage effect. When the left foot pedal 230 rises, the right foot pedal 240 falls. At this time, the patient's right buttock makes closer contact with the seat panel 150 than the left buttock. The right massage mechanism 820 rises to massage the patient's right buttock, providing a better massage effect.

[0230] Please refer to Figure 26 , Figure 27 and Figure 28 In some embodiments, the rehabilitation chair 10 includes a first drive shaft 510, which is rotatably disposed on the seat body 100 and located below the seat panel 150. The cranks 310 of the crank-slider mechanism 300 corresponding to the left foot pedal 230 and the cranks 310 of the crank-slider mechanism 300 corresponding to the right foot pedal 240 are both drively connected to the first drive shaft 510. The drive mechanism 400 is used to drive the first drive shaft 510 to rotate. The first drive shaft 510 is provided with a left cam 591 and a right cam 592. The left cam 591 is used to push the left massage mechanism 810 upward, and the right cam 592 is used to push the right massage mechanism 820 upward. The massage mechanism 800 has an abutment member 811, which abuts against the left cam 591 of the left massage mechanism 810 and against the right cam 592 of the right massage mechanism 820. When the abutment 811 of the left massage mechanism 810 is in the highest position, the abutment 811 of the right massage mechanism 820 is in the lowest position; when the abutment 811 of the left massage mechanism 810 is in the lowest position, the abutment 811 of the right massage mechanism 820 is in the highest position.

[0231] The statement that "the crank 310 of the crank-slider mechanism 300 corresponding to the left pedal 230 and the crank 310 of the crank-slider mechanism 300 corresponding to the right pedal 240 are both connected to the first transmission shaft 510" can mean that the crank 310 of the crank-slider mechanism 300 corresponding to the left pedal 230 and the crank 310 of the crank-slider mechanism 300 corresponding to the right pedal 240 are both connected to the first transmission shaft 510, or that the crank 310 of the crank-slider mechanism 300 corresponding to the left pedal 230 is connected to the first transmission shaft 510 through a transmission mechanism 600, and the crank 310 of the crank-slider mechanism 300 corresponding to the right pedal 240 is connected to the first transmission shaft 510 through another transmission mechanism 600.

[0232] A left cam 591 and a right cam 592 are connected to the first drive shaft 510. The left cam 591 corresponds to the left massage mechanism 810 and can push the left massage mechanism 810 upward. The left massage mechanism 810 can be reset under the action of gravity or by other reset structures. The right cam 592 corresponds to the right massage mechanism 820 and can push the right massage mechanism 820 upward. The right massage mechanism 820 can be reset under the action of gravity or by other reset structures.

[0233] The massage mechanism 800 includes an abutment member 811. The abutment member 811 of the left massage mechanism 810 abuts against a left cam 591. The left cam 591 can push the abutment member 811 of the left massage mechanism 810 upward, thereby causing the left massage mechanism 810 to rise. The abutment member 811 of the right massage mechanism 820 abuts against a right cam 592. The right cam 592 can push the abutment member 811 of the right massage mechanism 820 upward, thereby causing the right massage mechanism 820 to rise.

[0234] In some embodiments, the phase difference between the left cam 591 and the right cam 592 is 180°. When the abutment 811 of the left massage mechanism 810 abuts against the highest point of the left cam 591, the abutment 811 of the left massage mechanism 810 is in its highest position, and the abutment 811 of the right massage mechanism 820 is in its lowest position, abutting against the lowest point of the right cam 592. When the abutment 811 of the left massage mechanism 810 abuts against the lowest point of the left cam 591, the abutment 811 of the left massage mechanism 810 is in its lowest position, and the abutment 811 of the right massage mechanism 820 is in its highest position, abutting against the highest point of the right cam 592.

[0235] The phase difference between the left cam 591 and the right cam 592 is 180°, causing the right massage mechanism 820 to descend when the left massage mechanism 810 rises. Furthermore, since both the left cam 591 and the right cam 592 are located on the first drive shaft 510, which is connected to the crank 310 of the crank-slider mechanism 300 corresponding to the left foot pedal 230, and also connected to the crank 310 of the crank-slider mechanism 300 corresponding to the right foot pedal 240, it is possible to achieve synchronous rising or falling of the left massage mechanism 810 and the right foot pedal 240, and synchronous rising or falling of the right massage mechanism 820 and the left foot pedal 230.

[0236] Please refer to Figure 26 , Figure 27 and Figure 28 In some embodiments, the massage mechanism 800 further includes a massage head 813, a movable plate 812, a first elastic member 814, and an abutment member 811. The movable plate 812 is movably disposed on the seat panel 150 in the vertical direction, and the massage head 813 is disposed above the movable plate 812. The seat panel 150 is provided with a third through hole for the massage head 813 to extend out. The abutment member 811 is movably disposed on the movable plate 812 in the vertical direction, and the first elastic member 814 abuts against the abutment member 811 and the movable plate 812. The drive mechanism 400 is used to drive the abutment member 811 to move in the vertical direction.

[0237] The massage head 813 is a structure for massaging a patient. The massage head 813 is connected to the movable plate 812 and located above the movable plate 812. The movable plate 812 is movably disposed on the seat panel 150 in the vertical direction. In some embodiments, multiple guide posts are disposed below the seat panel 150, and multiple through holes are provided on the movable plate 812. The multiple guide posts are respectively disposed in the multiple through holes, and a stop is provided at one end of each guide post away from the seat panel 150 to restrict the movable plate 812 between the stop and the seat panel 150.

[0238] The abutment 811 is movably disposed on the movable plate 812 in the vertical direction. In some embodiments, the movable plate 812 is provided with a sliding groove that extends in the vertical direction, and the abutment 811 slides in cooperation with the sliding groove.

[0239] One end of the first elastic member 814 abuts against the movable plate 812, and the other end of the first elastic member 814 abuts against the abutting member 811. The first elastic member 814 is configured to cause the abutting member 811 to tend to move away from the movable plate 812. The first elastic member 814 can be a spring, rubber, leaf spring, etc.

[0240] A third through hole is provided on the seat panel 150, extending vertically through the seat panel 150. When the abutment 811 is in its highest position, the massage head 813 extends out of the third through hole, so that the massage head 813 exceeds the upper surface of the seat panel 150 to massage the patient. When the abutment 811 is in its lowest position, the massage head 813 retracts, so that the massage head 813 does not exceed the upper surface of the seat panel 150.

[0241] In some embodiments, a seat cushion may also be provided on the seat panel 150, and the seat cushion is provided with a fifth through hole. When the abutment 811 is in the highest position, the massage head 813 extends out of the fifth through hole, so that the massage head 813 exceeds the upper surface of the seat cushion to massage the patient. When the abutment 811 is in the lowest position, the massage head 813 retracts, so that the massage head 813 does not exceed the upper surface of the seat cushion.

[0242] When the drive mechanism 400 drives the abutment member 811 to move upward, the abutment member 811 transmits power to the movable plate 812 through the first elastic member 814, thereby driving the movable plate 812 to move upward, causing the massage head 813 to extend from the third through hole to massage the patient. The first elastic member 814 can act as a buffer, so that the stress of the massage head 813 on the patient is not too great, which helps to reduce the patient's discomfort.

[0243] Please refer to Figure 26 , Figure 27 and Figure 28 In some embodiments, the massage mechanism 800 further includes a second elastic element 815 disposed between the movable plate 812 and the seat panel 150, and the second elastic element 815 is used to drive the movable plate 812 to reset.

[0244] In some embodiments, the second elastic member 815 is sleeved on the guide post, thereby reducing the risk of the second elastic member 815 bending and deforming in other directions, so that the second elastic member 815 can stably perform the reset function.

[0245] There can be one or more second elastic elements 815.

[0246] The second elastic element 815 can be a spring, rubber, leaf spring, etc.

[0247] By setting the second elastic element 815, it is easier to reset the movable plate 812 and make the movement of the massage head 813 more accurate and reliable.

[0248] Please refer to Figure 26 , Figure 27 and Figure 28In some embodiments, the movable plate 812 is provided with a fourth through hole, and the abutment member 811 includes a rod portion 8111, a first limiting portion 8112, and a second limiting portion 8113. The rod portion 8111 passes through the fourth through hole, and the first limiting portion 8112 and the second limiting portion 8113 are respectively disposed at opposite ends of the rod portion 8111. The first limiting portion 8112 is located above the movable plate 812, and the second limiting portion 8113 is located below the movable plate 812. A first elastic member 814 is sleeved on the rod portion 8111, and the two ends of the first elastic member 814 abut against the second limiting portion 8113 and the movable plate 812, respectively.

[0249] The movable plate 812 is provided with a fourth through hole, which extends through the movable plate 812 in the vertical direction.

[0250] The rod portion 8111 is rod-shaped and passes through the fourth through hole. A first limiting portion 8112 is connected to the upper end of the rod portion 8111 and is located above the movable plate 812. A second limiting portion 8113 is connected to the lower end of the rod portion 8111 and is located below the movable plate 812. The first limiting portion 8112 and the second limiting portion 8113 cooperate to limit the rod portion 8111, reducing the risk of the rod portion 8111 disengaging from the fourth through hole. Specifically, the second limiting portion 8113 of the left massage mechanism 810 abuts against the left cam 591, and the second limiting portion 8113 of the right massage mechanism 820 abuts against the right cam 592.

[0251] The first elastic element 814 is sleeved on the rod portion 8111, one end of the first elastic element 814 abuts against the second limiting portion 8113, and the other end of the first elastic element 814 abuts against the movable plate 812.

[0252] Optionally, the massage mechanism 800 further includes a sleeve fitted on the outside of the rod portion 8111, a first elastic member 814 located on the outside of the rod portion 8111 and the inside of the sleeve, and a second limiting portion 8113 capable of moving within the sleeve in the up-down direction.

[0253] The abutment member 811 includes a rod portion 8111, a first limiting portion 8112, and a second limiting portion 8113. The rod portion 8111 passes through the fourth through hole. The first limiting portion 8112 and the second limiting portion 8113 are connected to both ends of the rod portion 8111. The first limiting portion 8112 and the second limiting portion 8113 cooperate to limit the rod portion 8111, ensuring that the rod portion 8111 can only move within a preset range in the vertical direction, reducing the risk of the rod portion 8111 dislodging from the fourth through hole. By sleeved the first elastic member 814 onto the rod portion 8111, the risk of the first elastic member 814 bending and deforming in other directions is reduced, which helps to improve the stability of the first elastic member 814.

[0254] Please refer to Figure 26, Figure 27 and Figure 28 In some embodiments, the massage mechanism 800 includes a plurality of massage heads 813, which include a first massage head 8131, a second massage head 8132 and a third massage head 8133. The first massage head 8131 is used to massage the Huantiao acupoint, the second massage head 8132 is used to massage the Huanzhong acupoint, and the third massage head 8133 is used to massage the Zhibian acupoint.

[0255] The left massage mechanism 810 may include a first massage head 8131, a second massage head 8132 and a third massage head 8133. The first massage head 8131 of the left massage mechanism 810 is used to massage the left Huantiao acupoint, the second massage head 8132 of the left massage mechanism 810 is used to massage the left Huanzhong acupoint, and the third massage head 8133 of the left massage mechanism 810 is used to massage the left Zhibian acupoint.

[0256] The right massage mechanism 820 may include a first massage head 8131, a second massage head 8132, and a third massage head 8133. The first massage head 8131 of the right massage mechanism 820 is used to massage the right Huantiao acupoint, the second massage head 8132 of the right massage mechanism 820 is used to massage the right Huanzhong acupoint, and the third massage head 8133 of the right massage mechanism 820 is used to massage the right Zhibian acupoint.

[0257] The first massage head 8131 massages the Huantiao acupoint, which helps dispel wind and dampness, strengthen the waist, and unblock meridians. The second massage head 8132 massages the Huanzhong acupoint, which helps relieve sciatica, lower back pain, and leg pain. The third massage head 8133 massages the Zhibian acupoint, which helps to soothe the meridians, relieve lower back and leg pain, and improve sciatica.

[0258] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A rehabilitation chair, characterized in that, include: Seat body; Multiple movable components are movably disposed on the seat body in the vertical direction, including a left armrest, a right armrest, a left footrest, and a right footrest; Multiple crank-slider mechanisms are disposed on the seat body, and each crank-slider mechanism corresponds to a movable component, with the movable component connected to the slider of the crank-slider mechanism. A drive mechanism is provided on the seat body. The drive mechanism is used to drive the cranks of the multiple crank-slider mechanisms to rotate, so as to realize the synchronous rise or fall of the left armrest and the right foot pedal, and the synchronous rise or fall of the right armrest and the left foot pedal. When the left handrail and the right foot pedal are at their upper limit positions, the right handrail and the left foot pedal are at their lower limit positions; when the left handrail and the right foot pedal are at their lower limit positions, the right handrail and the left foot pedal are at their upper limit positions.

2. The rehabilitation chair according to claim 1, characterized in that, The phase difference between the crank of the crank-slider mechanism corresponding to the left armrest and the crank of the crank-slider mechanism corresponding to the right armrest is 180°. The phase difference between the crank of the crank-slider mechanism corresponding to the left pedal and the crank of the crank-slider mechanism corresponding to the right pedal is 180°. The phase difference between the crank of the crank-slider mechanism corresponding to the left armrest and the crank of the crank-slider mechanism corresponding to the right pedal is 0.

3. The rehabilitation chair according to claim 1, characterized in that, The crank of the crank-slider mechanism corresponding to the left armrest and the crank of the crank-slider mechanism corresponding to the left foot pedal are connected in a transmission manner; The crank of the crank-slider mechanism corresponding to the right armrest and the crank of the crank-slider mechanism corresponding to the right foot pedal are connected in a transmission manner.

4. The rehabilitation chair according to claim 3, characterized in that, The rehabilitation chair also includes a first drive shaft, which is rotatably disposed on the seat body. The crank of the crank-slider mechanism corresponding to the left armrest and the crank of the crank-slider mechanism corresponding to the right armrest are both connected to the first drive shaft. The drive mechanism includes a drive member, which is connected to the first drive shaft and is used to drive the first drive shaft to rotate.

5. The rehabilitation chair according to claim 4, characterized in that, The rehabilitation chair includes a transmission mechanism, and the driving component is connected to the first transmission shaft through the transmission mechanism. The transmission mechanism includes one of the following: gear transmission mechanism, belt transmission mechanism, and chain transmission mechanism.

6. The rehabilitation chair according to claim 2, characterized in that, The drive mechanism includes two drive components. One drive component is connected to the crank-slider mechanism corresponding to the left armrest, and the other drive component is connected to the crank-slider mechanism corresponding to the right armrest.

7. The rehabilitation chair according to claim 6, characterized in that, The crank of the crank-slider mechanism is a first gear, and the rehabilitation chair includes a second gear. The first gear of the crank-slider mechanism corresponding to the left armrest and the first gear of the crank-slider mechanism corresponding to the left foot pedal are both meshed with a second gear. The first gear of the crank-slider mechanism corresponding to the right armrest and the first gear of the crank-slider mechanism corresponding to the right foot pedal are both meshed with another second gear. The output end of each drive component is connected to a second gear.

8. The rehabilitation chair according to claim 6, characterized in that, The rehabilitation chair includes a first pulley and a first transmission belt, wherein the crank of each crank-slider mechanism is coaxially arranged with one of the first pulleys; The first pulley coaxial with the crank of the crank-slider mechanism corresponding to the left armrest and the first pulley coaxial with the crank of the crank-slider mechanism corresponding to the left pedal are connected by a first transmission belt. The first pulley coaxial with the crank of the crank-slider mechanism corresponding to the right armrest and the first pulley coaxial with the crank of the crank-slider mechanism corresponding to the right pedal are connected by another first transmission belt. One driving member is connected to the first pulley corresponding to the left armrest, and the other driving member is connected to the first pulley corresponding to the right armrest.

9. The rehabilitation chair according to claim 6, characterized in that, The rehabilitation chair includes a first sprocket and a first chain, wherein the crank of each crank-slider mechanism is coaxially arranged with one of the first sprockets; The first sprocket coaxial with the crank of the crank-slider mechanism corresponding to the left armrest and the first sprocket coaxial with the crank of the crank-slider mechanism corresponding to the left pedal are connected by a first chain drive. The first sprocket coaxial with the crank of the crank-slider mechanism corresponding to the right armrest and the first sprocket coaxial with the crank of the crank-slider mechanism corresponding to the right pedal are connected by another first chain drive. One drive member is driven by the first sprocket corresponding to the left armrest, and the other drive member is driven by the first sprocket corresponding to the right armrest.

10. The rehabilitation chair according to claim 2, characterized in that, The crank of the crank-slider mechanism is a first gear, and the rehabilitation chair includes a second gear. The first gear of the crank-slider mechanism corresponding to the left armrest and the first gear of the crank-slider mechanism corresponding to the left foot pedal are both meshed with a second gear. The first gear of the crank-slider mechanism corresponding to the right armrest and the first gear of the crank-slider mechanism corresponding to the right foot pedal are both meshed with another second gear.

11. The rehabilitation chair according to claim 2, characterized in that, The rehabilitation chair includes a first pulley and a first transmission belt, wherein the crank of each crank-slider mechanism is coaxially arranged with one of the first pulleys; The first pulley of the crank-slider mechanism corresponding to the left armrest and the first pulley of the crank-slider mechanism corresponding to the left pedal are connected by a first transmission belt. The first pulley of the crank-slider mechanism corresponding to the right armrest and the first pulley of the crank-slider mechanism corresponding to the right pedal are connected by another first transmission belt.

12. The rehabilitation chair according to claim 2, characterized in that, The rehabilitation chair includes a first sprocket and a first chain, wherein the crank of each crank-slider mechanism is coaxially arranged with one of the first sprockets; The first sprocket of the crank-slider mechanism corresponding to the left armrest and the first sprocket of the crank-slider mechanism corresponding to the left pedal are connected by a first chain drive. The first sprocket of the crank-slider mechanism corresponding to the right armrest and the first sprocket of the crank-slider mechanism corresponding to the right pedal are connected by another first chain drive.

13. The rehabilitation chair according to claim 1, characterized in that, The crank of the crank-slider mechanism corresponding to the left armrest and the crank of the crank-slider mechanism corresponding to the right armrest are connected in a transmission manner; the crank of the crank-slider mechanism corresponding to the left pedal and the crank of the crank-slider mechanism corresponding to the right pedal are connected in a transmission manner.

14. The rehabilitation chair according to claim 13, characterized in that, The rehabilitation chair also includes a first drive shaft, which is rotatably disposed on the seat body. The crank of the crank-slider mechanism corresponding to the left armrest and the crank of the crank-slider mechanism corresponding to the right armrest are both connected to the first drive shaft. The rehabilitation chair also includes a second drive shaft, which is connected to the crank-slider mechanism corresponding to the left foot pedal and the crank-slider mechanism corresponding to the right foot pedal. The driving mechanism includes two driving components, one of which is connected to the first drive shaft and the other is connected to the second drive shaft.

15. The rehabilitation chair according to claim 14, characterized in that, The crank of the crank-slider mechanism is a first gear. The rehabilitation chair includes a second gear and a third gear. The first gear and a third gear of the crank-slider mechanism corresponding to the left foot pedal are both meshed with a second gear. The first gear and another third gear of the crank-slider mechanism corresponding to the right foot pedal are both meshed with another second gear. Both third gears are connected to the second transmission shaft.

16. The rehabilitation chair according to claim 14, characterized in that, The rehabilitation chair includes a first pulley, a second pulley, and a first transmission belt. The crank of each crank-slider mechanism is coaxially arranged with one of the first pulleys. The first pulley and a second pulley coaxially arranged with the crank of the crank-slider mechanism corresponding to the left foot pedal are connected by a first transmission belt. The first pulley and another second pulley coaxially arranged with the crank of the crank-slider mechanism corresponding to the right foot pedal are connected by another first transmission belt. Both second pulleys are connected to the second transmission shaft.

17. The rehabilitation chair according to claim 14, characterized in that, The rehabilitation chair includes a first sprocket, a second sprocket, and a first chain. The crank of each crank-slider mechanism is coaxially arranged with one of the first sprockets. The first sprocket and a second sprocket of the crank-slider mechanism corresponding to the left foot pedal are connected by a first chain. The first sprocket and another second sprocket of the crank-slider mechanism corresponding to the right foot pedal are connected by another first chain. Both second sprockets are connected to the second drive shaft.

18. The rehabilitation chair according to claim 14, characterized in that, The rehabilitation chair includes a transmission mechanism. One of the driving components is connected to the first transmission shaft through the transmission mechanism, and the other driving component is connected to the second transmission shaft through another transmission mechanism. The transmission mechanism includes one of a gear transmission mechanism, a belt transmission mechanism, and a chain transmission mechanism.

19. The rehabilitation chair according to claim 14, characterized in that, One of the output terminals of the drive unit is connected to the first drive shaft; and / or The output end of another of the drive components is connected to the second drive shaft.

20. The rehabilitation chair according to claim 1, characterized in that, The drive mechanism includes four drive components and a controller. Each drive component is connected to the crank drive of one of the crank-slider mechanisms. The controller is electrically connected to the four drive components and is configured to control the working state of the four drive components to achieve synchronous raising or lowering of the left armrest and the right foot pedal, and synchronous raising or lowering of the right armrest and the left foot pedal.

21. The rehabilitation chair according to claim 20, characterized in that, The crank of the crank-slider mechanism is a first gear, and the rehabilitation chair includes a second gear. One of the first gears meshes with one of the second gears, and the output end of each of the drive components is connected to one of the second gears.

22. The rehabilitation chair according to claim 20, characterized in that, The rehabilitation chair includes a transmission mechanism, and each of the driving components is connected to the crank drive of the crank-slider mechanism through a transmission mechanism. The transmission mechanism includes one of a gear drive mechanism, a belt drive mechanism, and a chain drive mechanism.

23. The rehabilitation chair according to any one of claims 1-22, characterized in that, The crank-slider mechanism includes a crank, a connecting rod, and a slider. The two ends of the connecting rod are rotatably connected to the crank and the slider, respectively. The crank is provided with a plurality of first adjustment holes at intervals. The distances of the plurality of first adjustment holes from the rotation axis of the crank are different. The connecting rod is selectively connected to one of the first adjustment holes.

24. The rehabilitation chair according to claim 23, characterized in that, The crank of the crank-slider mechanism is a first gear, and a plurality of first adjusting holes are arranged radially spaced along the first gear; or The crank of the crank-slider mechanism is a turntable, and a plurality of the first adjusting holes are arranged radially spaced along the turntable; or The crank of the crank-slider mechanism extends along a first direction, and a plurality of first adjustment holes are spaced apart along the first direction.

25. The rehabilitation chair according to any one of claims 1-22, characterized in that, The crank-slider mechanism includes a crank, a connecting rod, and a slider. The two ends of the connecting rod are rotatably connected to the crank and the slider, respectively. The slider is provided with a plurality of second adjustment holes, which are spaced apart along the vertical direction. The connecting rod is selectively connected to one of the second adjustment holes.

26. The rehabilitation chair according to any one of claims 1-22, characterized in that, The seat body includes a left support, a right support, and a seat support. The seat support connects the left support and the right support. The crank-slider mechanism corresponding to the left armrest and the crank-slider mechanism corresponding to the left foot pedal are both disposed on the left support. The left armrest and the left foot pedal are both movably disposed on the left support along the vertical direction. The crank-slider mechanism corresponding to the right armrest and the crank-slider mechanism corresponding to the right foot pedal are both disposed on the right support. The right armrest and the right foot pedal are both movably disposed on the right support along the vertical direction.

27. The rehabilitation chair according to claim 26, characterized in that, The left support includes a left top plate, the left top plate being provided with a first through hole, and the left handrail being movably inserted through the first through hole along the vertical direction; and / or The right support includes a right top plate, the right top plate is provided with a second through hole, and the right handrail is movably inserted through the second through hole along the vertical direction.

28. The rehabilitation chair according to claim 26, characterized in that, The left support includes a left top plate, and the left handrail is located above the left top plate. The left top plate has a first through hole. The left handrail and the slider of the crank-slider mechanism corresponding to the left handrail are connected by a first guide rod, which is movably inserted through the first through hole in the vertical direction; and / or The right support includes a right top plate, the right handrail is located above the right top plate, the right top plate is provided with a second through hole, the right handrail and the slider of the crank-slider mechanism corresponding to the right handrail are connected by a second guide rod, the second guide rod is movably inserted through the second through hole in the vertical direction.

29. The rehabilitation chair according to any one of claims 1-22, characterized in that, The rehabilitation chair includes a seat panel and a massage mechanism. The seat panel is disposed on the seat body, and the massage mechanism is movably disposed on the seat panel along the vertical direction. The drive mechanism is used to drive the massage mechanism to move along the vertical direction.

30. The rehabilitation chair according to claim 29, characterized in that, The rehabilitation chair includes multiple massage mechanisms, including a left massage mechanism and a right massage mechanism. The left massage mechanism rises or falls synchronously with the right foot pedal, and the right massage mechanism rises or falls synchronously with the left foot pedal.

31. The rehabilitation chair according to claim 30, characterized in that, The rehabilitation chair includes a first drive shaft, which is rotatably mounted on the seat body and located below the seat panel. The cranks of the crank-slider mechanism corresponding to the left foot pedal and the cranks of the crank-slider mechanism corresponding to the right foot pedal are both connected to the first drive shaft. The drive mechanism is used to drive the first drive shaft to rotate. The first drive shaft is provided with a left cam and a right cam. The left cam is used to push the left massage mechanism to rise, and the right cam is used to push the right massage mechanism to rise. The massage mechanism has abutting parts. The abutting parts of the left massage mechanism abut against the left cam, and the abutting parts of the right massage mechanism abut against the right cam. When the abutting parts of the left massage mechanism are in the highest position, the abutting parts of the right massage mechanism are in the lowest position. When the abutting parts of the left massage mechanism are in the lowest position, the abutting parts of the right massage mechanism are in the highest position.

32. The rehabilitation chair according to claim 29, characterized in that, The massage mechanism further includes a massage head, a movable plate, a first elastic element, and a stop member. The movable plate is movably disposed on the seat panel along the vertical direction. The massage head is disposed above the movable plate. The seat panel is provided with a third through hole for the massage head to extend out. The stop member is movably disposed on the movable plate along the vertical direction. The first elastic element abuts against the stop member and the movable plate. The driving mechanism is used to drive the stop member to move along the vertical direction.

33. The rehabilitation chair according to claim 32, characterized in that, The massage mechanism further includes a second elastic element, which is disposed between the movable plate and the seat panel, and is used to drive the movable plate to reset.

34. The rehabilitation chair according to claim 32, characterized in that, The movable plate is provided with a fourth through hole. The abutting member includes a rod, a first limiting part, and a second limiting part. The rod passes through the fourth through hole. The first limiting part and the second limiting part are respectively disposed at opposite ends of the rod. The first limiting part is located above the movable plate, and the second limiting part is located below the movable plate. The first elastic member is sleeved on the rod, and the two ends of the first elastic member abut against the second limiting part and the movable plate, respectively.

35. The rehabilitation chair according to claim 29, characterized in that, The massage mechanism includes multiple massage heads, including a first massage head, a second massage head, and a third massage head. The first massage head is used to massage the Huantiao acupoint, the second massage head is used to massage the Huanzhong acupoint, and the third massage head is used to massage the Zhibian acupoint.

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