Bedside upper and lower limb rehabilitation treadmill

Abstract

The bedside upper and lower limb rehabilitation treadmill comprises a frame body, an adjusting device, an exercise device and an auxiliary device, the frame body is connected with the adjusting device, the exercise device is connected with the frame body, the auxiliary device is connected with the frame body, a plurality of electrode pieces are arranged on the exercise device, the electrode pieces are used for stimulating the lower muscles of the limbs, the auxiliary device is used for hoisting and supporting the upper part of the limbs, the supporting state of the lower part is adjusted through the adjusting device, different sizes and specifications of beds are adapted, the exercise device is used as a main force carrier, is used for providing resistance when the patient exercises the upper and lower limbs, and performs power compensation in real time according to the exercise state, so that movement injury caused by the discomfort of the upper and lower limbs of the patient is prevented, the muscles are stimulated through the electrode pieces during the exercise process, corresponding muscle groups are stimulated, the specific quantity and position mode are adjusted according to the exercise position, and the auxiliary device is used for hoisting and supporting the upper part of the limbs, so that the exercise difficulty is reduced.

Description

Technical Field

[0001] This invention relates to the field of rehabilitation treadmill technology, specifically to bedside upper and lower limb rehabilitation treadmills. Background Technology

[0002] Rehabilitation treadmills are generally used for limb rehabilitation training. They are an integrated design of mechanics, rehabilitation, and control engineering. By simulating limb movements, they provide patients with active and passive training to improve the speed of patient rehabilitation.

[0003] Rehabilitation treadmills are primarily used to increase muscle strength and thickness, enabling patients to rebuild muscle mass in their limbs and return to a normal life. However, with the widespread use of rehabilitation treadmills, conventional models have become less adaptable to different environments and cannot meet the needs of people in various bed positions, thus reducing their practicality.

[0004] Furthermore, rehabilitation treadmills are primarily intended for patients whose limbs cannot function normally. Simply performing fixed-power exercises not only offers limited benefits but also easily leads to muscle damage and slows down rehabilitation. Currently, existing rehabilitation treadmills cannot automatically adjust to the different rehabilitation stages and levels of exertion experienced by patients. Summary of the Invention

[0005] The purpose of this invention is to provide a bedside upper and lower limb rehabilitation treadmill to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0007] The bedside upper and lower limb rehabilitation treadmill includes a frame, an adjustment device, an exercise device, and an auxiliary device. The frame and adjustment device are connected, the exercise device is connected to the frame, and the auxiliary device is connected to the frame. The exercise device is equipped with several electrode pads, which are used to stimulate the muscles of the lower limbs. The auxiliary device is used to provide suspension support for the upper limbs.

[0008] The rehabilitation treadmill is used to perform rehabilitation training for the patient's upper and lower limbs. The frame serves as the main support structure and is placed beside the bed for easy patient training. It also houses and secures other devices. The lower support is adjusted to accommodate beds of different sizes. The exercise device acts as the main load-bearing carrier, providing resistance during the patient's upper and lower limb exercises and providing real-time power compensation based on the exercise status to prevent discomfort and sports injuries. During exercise, electrodes stimulate the muscles, targeting specific muscle groups. The number, location, and method of stimulation are adjusted according to the area being exercised. Auxiliary devices are used to suspend and support the upper part of the limbs. For lower limb exercises, the thigh is suspended; for upper limb exercises, the upper arm is suspended to reduce the difficulty of the exercise.

[0009] Furthermore, the frame includes a base and a crossbeam. The base extends upward to provide an upright. One end of the crossbeam is fastened to the upright. The upright is a telescopic structure.

[0010] The adjustment device includes two support rods, which are rotatably connected to the base.

[0011] During adjustment: the two support rods rotate in opposite directions.

[0012] A stand is installed at the top of the base. The stand is telescopic and the relative height of the exercise device can be adjusted via a crossbeam to accommodate beds of different heights. When the frame moves to the side of the bed, the opening angle of the two support rods can be adjusted according to the size of the bed to adapt to different bed types. In the initial state, the two support rods are symmetrically arranged at the bottom of the base. By rotating the two support rods in opposite directions, the support performance of the base remains stable during the process of increasing and closing the opening angle, thus improving the stability of the frame during exercise.

[0013] Furthermore, the adjustment device also includes an adjustment rod, an expansion groove on the base with an upward opening, the lower end of the adjustment rod being inserted into the expansion groove, a transmission plate at the lower end of the adjustment rod being rotatably connected to the wall of the expansion groove, connecting rods at both ends of the transmission plate, and the transmission plate and connecting rods being connected by ball joints, the expansion groove being open on the side near the support rod, one end of the support rod being inserted into the expansion groove, and the connecting rod being ball jointed to the adjacent support rod at the end away from the transmission plate, and the support rod being rotatably connected to the inner cavity of the expansion groove.

[0014] The lower end of the adjusting rod is inserted into the expansion groove of the base and drives the transmission plate to rotate along the expansion groove. The transmission plate is equipped with ball joint connecting rods on both sides. The connecting parts are stacked relative to the axis of the transmission plate. During the rotation of the transmission plate, the connecting rods on both sides move and drive the support rods to rotate on the fixed axis through the connecting rods. This allows the two support rods to expand or contract at the same time through one adjusting rod, which is convenient for quick adjustment according to the size of the bed and improves the efficiency of use.

[0015] Furthermore, the auxiliary device includes a housing, a take-up roller, auxiliary rollers, and a lifting rope. The crossbeam is provided with a splicing groove, and the housing is engaged with the splicing groove. The housing is provided with a lifting cavity with openings on both sides. The two ends of the take-up roller pass through the openings on both sides of the lifting cavity, and the take-up roller and the lifting cavity are rotatably connected. There are two sets of auxiliary rollers, each set with two rollers, and the two sets of auxiliary rollers are rotatably connected to the lifting cavity. The lifting rope is unwound from the take-up roller and the two auxiliary rollers in sequence. The lower end of the lifting cavity is provided with an opening, and the end of the lifting rope passes through the opening of the lifting cavity. The end of the lifting rope is provided with a lifting ring, which includes two centered and meshing semi-rings. The lifting ring is used to lift the upper part of the limb.

[0016] The crossarm is equipped with a slot for easy insertion and snap-fit ​​of the housing, improving quick-release performance. During auxiliary support, the hoisting rope is unwound from the winding roller and reversed through two auxiliary rollers in the same group, leading out from the lower part of the hoisting cavity. The upper part of the limb is then hoisted through the split hoisting rings, ensuring that the upper part of the limb is in a stress-free state. During rehabilitation exercises, electrical stimulation is applied through electrode pads to keep the lower part of the limb in an exercise state, reducing the fatigue of exercise and facilitating rehabilitation treatment.

[0017] Furthermore, the auxiliary device also includes an anti-rotation plate, which is an elastic plate, and the winding roller is provided with a groove, and the anti-rotation plate and the groove are engaged.

[0018] The take-up roller is equipped with a slot. When unwinding, the anti-rotation plate does not engage in the slot, which facilitates the unwinding of the suspension rope. During exercise, the anti-rotation plate is engaged in the take-up roller to restrict its rotation, which facilitates the hoisting and support of the upper body.

[0019] Furthermore, the exercise device includes an exercise frame, a turntable, and a pressure-sensing component. A drive chamber is provided on the crossbeam, and two wheel frames are respectively provided at both ends of the turntable. The two wheel frames are rotatably connected to the crossbeam. The wheel frames are "Z"-shaped, and the end of the wheel frame away from the drive chamber is snapped into the exercise frame. The exercise frame includes a support sleeve, a movement plate, and a strap. The movement plate is snapped into the adjacent wheel frame. The support sleeve is used to restrain the lower part of the limb. The support sleeve and the movement plate are hinged. The support sleeve is provided with a strap. The strap has a two-section structure. The two ends of the strap are snapped together. The two ends of the strap away from the snapping point are respectively fastened to the support sleeve. The strap is used to restrain the lower outer part of the limb. A detection chamber is provided on the support sleeve, and the pressure-sensing component is connected to the detection chamber.

[0020] The exercise frame, as the main force transmission component, is installed on the rotating frames on both sides of the turntable. The turntable rotates on a fixed axis within the drive chamber via the rotating frames on both sides. For example, during lower limb exercises, the feet step on the exercise board, and the lower legs are fitted onto the support sleeve. The outer side of the lower legs is restrained by straps. The straps are made of non-elastic components, so that the lower legs will not move outward when the muscles contract. The straps have a two-section structure, which is fixed to both sides of the support sleeve. The two sections are connected by buckles. Since the thighs are suspended, the calf muscles are stimulated by electrode plates. The lower legs drive the exercise board to rotate through the feet, which in turn causes the two rotating frames to drive the turntable to rotate on a fixed axis. A detection chamber is set on the support sleeve, and the pressure-sensing component is placed in the detection chamber, with the outer side abutting against the leg muscles. The auxiliary straps restrain the lower legs and are used to detect the contraction force of the leg muscles in real time.

[0021] Furthermore, the pressure-sensing component includes a pressure-sensing airbag, a push rod, and a pressure-sensing coil. The pressure-sensing airbag is arranged along the inner side of the support sleeve, with one end of the airbag inserted into the detection chamber. The push rod is placed inside the detection chamber, with the end of the airbag away from the lower part of the limb abutting against the push rod. A pressure-sensing coil is provided in the middle section of the detection chamber. The roughness of the detection chamber wall increases gradually in the direction away from the pressure-sensing airbag, and the push rod and the detection chamber wall are in frictional contact.

[0022] During restraint, the lower leg is held against the pressure-sensitive airbag by a strap, ensuring the air pressure inside the airbag reaches a standard value. During leg exercises, muscle contraction causes the horizontal axis to increase and the vertical axis to decrease. The strap, restraining the lower leg, further compresses the pressure-sensitive airbag during contraction. The airbag expands along the detection chamber under pressure, pushing a push rod. The push rod is made of magnet. During this movement, the pressure-sensitive coil cuts magnetic field lines, generating an induced current. The magnitude of this induced current is positively correlated with the distance the push rod moves; that is, the greater the muscle contraction, the greater the distance the push rod moves, and the greater the induced current generated in the pressure-sensitive coil. This allows for real-time detection of the degree of leg muscle contraction.

[0023] Furthermore, the exercise device also includes a drive motor, which is placed inside the drive cavity. The output end of the drive motor is equipped with a compensating pulley, and the turntable and the compensating pulley are connected by a belt drive.

[0024] The drive motor built into the drive chamber assists in driving the turntable to rotate. When the patient's legs are weak, that is, the leg muscles relax, the pressure on the pressure-sensitive airbag decreases, the push rod moves in the opposite direction, generating a reverse current. According to the magnitude of the reverse current, the current input to the drive motor by the controller increases, that is, the compensation power is increased. The drive motor drives the turntable to rotate through the compensation pulley. Through power compensation, over-exercising and muscle damage are prevented.

[0025] As an optimization, the pressure sensing coil and the drive motor are electrically connected. The current signal generated by the pressure sensing coil is sent to the controller, which controls the magnitude of the current input to the drive motor, facilitating real-time compensation.

[0026] Compared with the prior art, the beneficial effects achieved by this invention are as follows: In the initial state, the two support rods are symmetrically arranged at the lower end of the base. By rotating the two support rods in opposite directions, the support performance of the base remains stable during the increase and closing of the opening angle, thus improving the stability of the frame during exercise. The outer side of the lower leg is restrained by a strap, which is made of a non-elastic component, preventing the lower leg from moving outwards when the muscles contract. A detection cavity is set on the support sleeve, and the pressure-sensing component is placed inside the detection cavity, with the outer side abutting against the leg muscles. This assists the strap in restraining the lower leg, enabling real-time detection of the contraction force of the leg muscles. During leg exercises, the muscle contraction causes the horizontal axis to increase and the vertical axis to decrease. Since the lower leg is restrained by the strap, the contraction process affects the pressure-sensing component. The airbag is further compressed, causing it to expand along the detection chamber and push a push rod. The push rod is made of magnet. During its movement, the pressure-sensing coil cuts magnetic field lines, generating an induced current. The magnitude of the induced current is positively correlated with the distance the push rod moves; that is, the greater the muscle contraction, the greater the distance the push rod moves, and the greater the induced current generated in the pressure-sensing coil. This allows for real-time detection of the degree of leg muscle contraction. When the patient experiences leg weakness, i.e., the leg muscles relax, the pressure on the airbag decreases, and the push rod moves in the opposite direction, generating a reverse current. Based on the magnitude of the reverse current, the controller increases the current input to the drive motor, i.e., increases the compensation power. The drive motor drives the turntable to rotate through the compensation pulley. Through power compensation, over-exercising and muscle damage are prevented. Attached Figure Description

[0027] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0028] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the adjusting device structure of the present invention;

[0030] Figure 3 This is a schematic diagram of the auxiliary device structure of the present invention;

[0031] Figure 4 This is a schematic diagram of the muscle contraction degree detection method of the present invention;

[0032] Figure 5 This is a schematic diagram of the pressure-sensing component structure of the present invention;

[0033] Figure 6 This is a schematic diagram of the power compensation structure of the present invention;

[0034] In the diagram: 1-Frame, 11-Base, 12-Upright, 13-Crossbeam, 2-Adjusting device, 21-Adjusting rod, 22-Transmission plate, 23-Connecting rod, 24-Support rod, 3-Exercise device, 31-Exercise frame, 311-Support sleeve, 3111-Detection chamber, 312-Motion plate, 313-Strap, 32-Rotating frame, 33-Turntable, 34-Pressure sensing component, 341-Pressure sensing airbag, 342-Push rod, 343-Pressure sensing coil, 35-Drive motor, 4-Auxiliary device, 41-Housing shell, 42-Take-up roller, 43-Auxiliary roller, 44-Hanging rope, 45-Anti-rotation plate, 46-Hanging ring, 5-Electrode plate. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] The present invention provides the following technical solution:

[0037] like Figures 1-6 As shown, the bedside upper and lower limb rehabilitation treadmill includes a frame 1, an adjustment device 2, an exercise device 3, and an auxiliary device 4. The frame 1 is connected to the adjustment device 2, the exercise device 3 is connected to the frame 1, and the auxiliary device 4 is connected to the frame 1. The exercise device 3 is equipped with several electrode pads 5, which are used to stimulate the muscles of the lower limbs. The auxiliary device 4 is used to provide suspension support for the upper limbs.

[0038] The rehabilitation treadmill is used to perform rehabilitation training for the patient's upper and lower limbs. The frame 1 serves as the main support structure and is placed beside the bed for easy patient training. It also houses and fixes other devices. The lower support is adjusted by the adjustment device 2 to accommodate beds of different sizes. The exercise device 3 serves as the main load-bearing carrier, providing resistance when the patient exercises their upper and lower limbs. It also provides real-time power compensation based on the exercise status to prevent discomfort and sports injuries caused by the patient's upper and lower limbs. During the exercise, electrodes stimulate the muscles, targeting specific muscle groups. The specific number, location, and method of stimulation are adjusted according to the area being exercised. The auxiliary device 4 is used to suspend and support the upper part of the limbs. When exercising the lower limbs, the thigh is suspended; when exercising the upper limbs, the upper arm is suspended to reduce the difficulty of the exercise.

[0039] Furthermore, the frame 1 includes a base 11 and a crossbeam 13. The base 11 extends upward to provide an upright 12. One end of the crossbeam 13 is fastened to the upright 12. The upright 12 is a telescopic structure.

[0040] The adjusting device 2 includes two support rods 24, which are rotatably connected to the base 11 respectively;

[0041] During adjustment: the two support rods 24 rotate in opposite directions.

[0042] A support frame 12 is installed on the upper end of the base 11. The support frame 12 is telescopic and can adjust the relative height of the exercise device 3 via the crossbeam 13 to adapt to beds of different heights. When the frame 1 moves to the side of the bed, the opening angle of the two support rods 24 is adjusted according to the size of the bed to facilitate adaptation to different bed types. In the initial state, the two support rods 24 are symmetrically arranged at the lower end of the base 11. By rotating the two support rods 24 in opposite directions, the support performance of the base 11 remains stable during the process of increasing and closing the opening angle, thereby improving the stability of the frame 1 during exercise.

[0043] Furthermore, the adjusting device 2 also includes an adjusting rod 21. The base 11 is provided with an expansion groove, which is open upwards. The lower end of the adjusting rod 21 is inserted into the expansion groove. The lower end of the adjusting rod 21 is provided with a transmission plate 22, which is rotatably connected to the wall of the expansion groove. The two ends of the transmission plate 22 are respectively provided with connecting rods 23, which are connected by ball joints. The expansion groove is opened on the side near the support rod 24. One end of the support rod 24 is inserted into the expansion groove. The end of the connecting rod 23 away from the transmission plate 22 is spherically connected to the adjacent support rod 24. The support rod 24 is rotatably connected to the inner cavity of the expansion groove.

[0044] The lower end of the adjusting rod 21 is inserted into the expansion groove of the base 11 and drives the transmission plate 22 to rotate along the expansion groove. The transmission plate 22 is provided with ball joint connecting rods 23 on both sides. The connecting parts are stacked relative to the axis of the transmission plate 22. During the rotation of the transmission plate 22, the connecting rods 23 on both sides are moved, and the connecting rods 23 drive the support rods 24 to rotate on a fixed axis. Thus, the two support rods 24 can be controlled to expand or contract at the same time by one adjusting rod 21, which is convenient for quick adjustment according to the size of the bed and improves the efficiency of use.

[0045] Furthermore, the auxiliary device 4 includes a housing 41, a take-up roller 42, auxiliary rollers 43, and a lifting rope 44. The crossbeam 13 is provided with a splice groove, and the housing 41 is engaged with the splice groove. The housing 41 is provided with a lifting cavity with openings on both sides. The two ends of the take-up roller 42 pass through the openings on both sides of the lifting cavity, and the take-up roller 42 is rotatably connected to the lifting cavity. There are two sets of auxiliary rollers 43, with two rollers in each set. The two sets of auxiliary rollers 43 are rotatably connected to the lifting cavity. The lifting rope 44 is unwound from the take-up roller 42 and the two auxiliary rollers 43 in sequence. The lower end of the lifting cavity is provided with an opening, and the end of the lifting rope 44 passes through the opening of the lifting cavity. The end of the lifting rope 44 is provided with a lifting ring 46, which includes two centered and meshing semi-rings. The lifting ring 46 is used to lift the upper part of the limb.

[0046] The crossbeam 13 is provided with a plug-in slot, which makes it easy to directly insert the housing 41 into the snap-fit, improving the quick-release performance. When providing auxiliary support, the hoisting rope 44 is unwound from the winding roller 42 and reversed through the two auxiliary rollers 43 in the same group. It is then led out from the lower part of the hoisting cavity and hoisted through the split hoisting ring 46, so that the upper part of the limb is in a stress-free state. When performing rehabilitation exercises, the electrode plate 5 is used to provide electrical stimulation, so that the lower part of the limb is in an exercise state, reducing the fatigue of exercise and facilitating rehabilitation treatment.

[0047] Furthermore, the auxiliary device 4 also includes an anti-rotation piece 45, which is an elastic piece. The winding roller 42 is provided with a groove, and the anti-rotation piece 45 is engaged with the groove.

[0048] The take-up roller 42 is provided with a slot. When unwinding, the anti-rotation piece 45 does not engage in the slot, which facilitates the unwinding of the suspension rope 44. During exercise, the anti-rotation piece 45 is engaged in the take-up roller 42 to restrict the rotation of the take-up roller 42, which facilitates the hoisting support of the upper part of the limbs.

[0049] Furthermore, the exercise device 3 includes an exercise frame 31, a turntable 33, and a pressure-sensing component 34. A drive chamber is provided on the crossbeam 13. Wheel frames 32 are respectively provided at both ends of the turntable 33. The two wheel frames 32 are rotatably connected to the crossbeam 13. The wheel frames 32 are Z-shaped. The end of the wheel frame 32 away from the drive chamber is engaged with the exercise frame 31. The exercise frame 31 includes a support sleeve 311, a movement plate 312, and a strap 313. The movement plate 312 is engaged with the adjacent wheel frame 32. The support sleeve 311 is used to restrain the lower part of the limb. The support sleeve 311 and the motion plate 312 are hinged. The support sleeve 311 is provided with a strap 313. The strap 313 has a two-section structure. The two ends of the strap 313 are snapped together. The two ends of the strap 313 away from the snapping point are respectively fastened to the support sleeve 311. The strap 313 is used to restrain the lower outer part of the limb. The support sleeve 311 is provided with a detection cavity 3111. The pressure sensing component 34 is connected to the detection cavity 3111.

[0050] The exercise frame 31, as the main force transmission component, is mounted on the wheel frames 32 on both sides of the turntable 33. The turntable 33 rotates on a fixed axis within the drive cavity via the wheel frames 32 on both sides. For example, during lower limb exercises, the feet step on the exercise board 312, and the lower legs are fitted onto the support sleeves 311. The outer side of the lower legs is restrained by the straps 313. The straps 313 are non-elastic components, so that the lower legs will not move outward when the muscles contract. The straps 313 have a two-section structure, which is fixed to the... On both sides of the support sleeve 311, the two sections of the structure are connected by snaps. Since the thigh is suspended, the calf muscles are stimulated by the electrode plate 5. The calf drives the motion plate 312 to rotate through the foot, thereby causing the two wheel frames 32 to drive the turntable 33 to rotate on a fixed axis. A detection cavity 3111 is set on the support sleeve 311, and the pressure sensing component 34 is placed in the detection cavity 3111, with its outer side abutting against the leg muscles. The auxiliary strap 313 restrains the calf and is used to detect the contraction force of the leg muscles in real time.

[0051] Furthermore, the pressure-sensing component 34 includes a pressure-sensing airbag 341, a push rod 342, and a pressure-sensing coil 343. The pressure-sensing airbag 341 is arranged along the inner side of the support sleeve 311. One end of the pressure-sensing airbag 341 is inserted into the detection cavity 3111. The push rod 342 is placed in the detection cavity 3111. The end of the pressure-sensing airbag 341 away from the lower part of the limb abuts against the push rod 342. The pressure-sensing coil 343 is provided in the middle section of the detection cavity 3111. The roughness of the wall surface of the detection cavity 3111 increases gradually in the direction away from the pressure-sensing airbag 341. The push rod 342 and the wall surface of the detection cavity 3111 are in frictional contact.

[0052] During restraint, the lower leg is held against the pressure-sensitive airbag 341 by the strap 313, so that the gas pressure inside the pressure-sensitive airbag 341 reaches the standard value. During leg exercise, due to muscle contraction, the horizontal axis increases and the vertical axis decreases. The lower leg is restrained by the strap 313. During the contraction process, the pressure-sensitive airbag 341 is further compressed. The pressure-sensitive airbag 341 expands along the detection cavity 3111 under pressure and pushes the push rod 342 to move. The push rod 342 is made of magnetic material. During the movement, the pressure-sensitive coil 343 cuts the magnetic field lines and generates an induced current. The magnitude of the induced current is positively correlated with the distance the push rod 342 moves. That is, the greater the degree of muscle contraction, the greater the distance the push rod 342 moves, and the greater the induced current generated on the pressure-sensitive coil 343, thereby enabling real-time detection of the degree of leg muscle contraction.

[0053] Furthermore, the exercise device 3 also includes a drive motor 35, which is placed inside the drive cavity. The output end of the drive motor 35 is provided with a compensating pulley, and the turntable 33 and the compensating pulley are connected by belt drive.

[0054] The drive motor 35 built into the drive chamber assists in driving the turntable 33 to rotate. When the patient's legs are weak, that is, the leg muscles relax, the pressure on the pressure-sensitive airbag 341 decreases, the push rod 342 moves in the opposite direction, generating a reverse current. According to the magnitude of the reverse current, the current input by the controller to the drive motor 35 increases, that is, the compensation power is increased. The drive motor 35 drives the turntable 33 to rotate through the compensation pulley. Through power compensation, over-exercise is prevented, which could cause muscle damage.

[0055] As an optimization, the pressure sensing coil 343 and the drive motor 35 are electrically connected. The current signal generated by the pressure sensing coil 343 is sent to the controller, which controls the magnitude of the current input to the drive motor 35 for real-time compensation.

[0056] The working principle of this invention: In the initial state, the two support rods 24 are symmetrically arranged at the lower end of the base 11. By rotating the two support rods 24 in opposite directions, the support performance of the base 11 remains stable during the increase and closing of the opening angle, thus improving the stability of the frame 1 during exercise. The outer side of the lower leg is constrained by the strap 313, which is a non-elastic component, so that the lower leg will not move outward when the muscles contract. A detection cavity 3111 is set on the support sleeve 311, and the pressure-sensing component 34 is placed in the detection cavity 3111, with the outer side abutting against the leg muscles. The strap 313 assists in constraining the lower leg and is used to detect the contraction force of the leg muscles in real time. During leg exercise, due to the state of muscle contraction, the horizontal axis increases and the vertical axis decreases. The lower leg is constrained by the strap 313, and during the contraction process, the pressure-sensing airbag 341 is further compressed. The pressure-sensitive airbag 341 expands along the detection chamber 3111 under pressure, pushing the push rod 342 to move. The push rod 342 is made of magnetic material. During the movement, the pressure-sensitive coil 343 cuts the magnetic field lines and generates an induced current. The magnitude of the induced current is positively correlated with the distance the push rod 342 moves. That is, the greater the degree of muscle contraction, the greater the distance the push rod 342 moves, and the greater the induced current generated on the pressure-sensitive coil 343, thus enabling real-time detection of the degree of leg muscle contraction. When the patient's legs are weak, that is, the leg muscles relax, the pressure on the pressure-sensitive airbag 341 decreases, and the push rod 342 moves in the opposite direction, generating a reverse current. According to the magnitude of the reverse current, the current input by the controller to the drive motor 35 increases, that is, the compensation power is increased. The drive motor 35 drives the turntable 33 to rotate through the compensation pulley. Through power compensation, over-exercise and muscle damage are prevented.

[0057] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0058] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A bedside upper and lower limb rehabilitation treadmill, characterized in that: The rehabilitation treadmill includes a frame (1), an adjustment device (2), an exercise device (3), and an auxiliary device (4). The frame (1) and the adjustment device (2) are connected. The exercise device (3) and the frame (1) are connected. The auxiliary device (4) and the frame (1) are connected. The exercise device (3) is provided with several electrode pads (5). The electrode pads (5) are used to stimulate the muscles of the lower part of the limb. The auxiliary device (4) is used to provide suspension support for the upper part of the limb. The exercise device (3) includes an exercise frame (31) and a pressure sensing component (34). The exercise frame (31) includes a support sleeve (311). The support sleeve (311) is provided with a strap (313). The strap (313) has a two-section structure, and the two ends of the strap (313) are connected by a snap fastener. The pressure-sensing component (34) includes a pressure-sensing airbag (341), a push rod (342), and a pressure-sensing coil (343). The pressure-sensing airbag (341) is arranged along the inner side of the support sleeve (311). One end of the pressure-sensing airbag (341) is inserted into the detection chamber (3111). The push rod (342) is placed in the detection chamber (3111). The end of the pressure-sensing airbag (341) away from the lower part of the limb abuts against the push rod (342). The middle section of the detection chamber (3111) is provided with a pressure-sensing coil (343). The roughness of the wall surface of the detection chamber (3111) is set to increase in the direction away from the pressure-sensing airbag (341). The push rod (342) and the wall surface of the detection chamber (3111) are in frictional contact.

2. The bedside upper and lower limb rehabilitation treadmill according to claim 1, characterized in that: The frame (1) includes a base (11) and a crossbeam (13). The base (11) extends upward to provide a vertical frame (12). One end of the crossbeam (13) is fastened to the vertical frame (12). The vertical frame (12) is a telescopic structure. The adjustment device (2) includes two support rods (24), which are rotatably connected to the base (11) respectively; During adjustment: the two support rods (24) rotate in opposite directions.

3. The bedside upper and lower limb rehabilitation treadmill according to claim 2, characterized in that: The adjustment device (2) also includes an adjustment rod (21). The base (11) is provided with an expansion groove. The expansion groove is set to open upward. The lower end of the adjustment rod (21) is inserted into the expansion groove. The lower end of the adjustment rod (21) is provided with a transmission plate (22). The transmission plate (22) is rotatably connected to the wall of the expansion groove. The two ends of the transmission plate (22) are respectively provided with connecting rods (23). The transmission plate (22) and the connecting rods (23) are connected by ball joints. The expansion groove is set to open on the side near the support rod (24). One end of the support rod (24) is inserted into the expansion groove. The end of the connecting rod (23) away from the transmission plate (22) is spherically connected to the adjacent support rod (24). The support rod (24) is rotatably connected to the inner cavity of the expansion groove.

4. The bedside upper and lower limb rehabilitation treadmill according to claim 3, characterized in that: The auxiliary device (4) includes a housing (41), a take-up roller (42), auxiliary rollers (43), and a lifting rope (44). The crossbeam (13) is provided with a slot for insertion, and the housing (41) is engaged with the slot. The housing (41) is provided with a lifting cavity, which has openings on both sides. The two ends of the take-up roller (42) pass through the openings on both sides of the lifting cavity, and the take-up roller (42) is rotatably connected to the lifting cavity. There are two sets of auxiliary rollers (43). Each set of auxiliary rollers (43) has two sets, and the two sets of auxiliary rollers (43) are rotatably connected to the hoisting cavity. The hoisting rope (44) is unwound from the take-up roller (42) and the two auxiliary rollers (43) in sequence. The lower end of the hoisting cavity has an opening, and the end of the hoisting rope (44) passes through the opening of the hoisting cavity. The end of the hoisting rope (44) has a hoisting ring (46), which includes two centered and meshing semi-rings. The hoisting ring (46) is used to hoist the upper part of the limb.

5. The bedside upper and lower limb rehabilitation treadmill according to claim 4, characterized in that: The auxiliary device (4) also includes an anti-rotation piece (45), which is an elastic piece. The winding roller (42) is provided with a slot, and the anti-rotation piece (45) is engaged with the slot.

6. The bedside upper and lower limb rehabilitation treadmill according to claim 5, characterized in that: The exercise device (3) includes a turntable (33), a drive cavity is provided on the crossbeam (13), and wheel frames (32) are respectively provided at both ends of the turntable (33). The two wheel frames (32) are rotatably connected to the crossbeam (13). The wheel frames (32) are "Z" shaped. The end of the wheel frame (32) away from the drive cavity is engaged with the exercise frame (31). The exercise frame (31) includes an exercise plate (312) and a strap (313). 2) It is engaged with the adjacent wheel frame (32). The support sleeve (311) is used to restrain the lower part of the limb. The support sleeve (311) and the motion plate (312) are hinged. The two ends of the strap (313) away from the engagement point are respectively fastened to the support sleeve (311). The strap (313) is used to restrain the lower outer side of the limb. The support sleeve (311) is provided with a detection cavity (3111). The pressure sensing component (34) is connected to the detection cavity (3111).

7. The bedside upper and lower limb rehabilitation treadmill according to claim 6, characterized in that: The exercise device (3) also includes a drive motor (35), which is placed in the drive cavity. The output end of the drive motor (35) is provided with a compensating pulley, and the turntable (33) and the compensating pulley are connected by belt drive.

8. The bedside upper and lower limb rehabilitation treadmill according to claim 7, characterized in that: The pressure sensing coil (343) and the drive motor (35) are electrically connected.

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