Lower limb muscle atrophy prevention rehabilitation training device

Abstract

The invention relates to the technical field of medical auxiliary instruments, and discloses a lower limb muscle atrophy prevention rehabilitation training device which comprises a base, an annular fixing seat is slidably mounted on the side wall of a supporting seat, and a backswing assembly capable of synchronously massaging lower limb epidermis muscles of a patient is arranged in the annular fixing seat. Through arrangement of a backswing assembly, when a patient fixes the lower limbs on an annular fixing seat and simulates walking for exercise, due to relative sliding between the annular fixing seat and a supporting seat, transmission of a half gear and a large toothed plate and intermittent driving of a lifting lever on a convex block under the influence of a round rod and a guide groove are matched; the U-shaped frame drives the elastic rod to do approximately disordered up-down reciprocating motion along the inner wall of the annular fixing seat under the influence of the reset spring, so that the skin and muscles of the lower limbs of the patient far away from one side of the annular fixing seat are subjected to rolling massage, and the effects of slight stimulation and recovery exercise are achieved; the overall efficiency of the lower limbs of the patient during exercise is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of medical auxiliary equipment, in particular to a lower limb muscle atrophy prevention and rehabilitation training device. Background Art

[0002] Stroke, commonly known as cerebral infarction, is a serious cerebrovascular disease that can easily cause hemiplegia and lead to muscle movement disorders in the patient's limbs, especially affecting the patient's walking and exercise ability. The current functional electrical stimulation and lower limb simulated walking training treatments have good clinical effects. Functional electrical stimulation (FES) refers to low-frequency pulse currents that stimulate paralyzed or weak muscles through implanted or surface electrodes to simulate normal movement patterns. Clinically, it has been proven that low-frequency currents can be used to stimulate the patient's lower limb muscles and gradually restore limb function.

[0003] According to a functional electrical stimulation device for lower limb rehabilitation training disclosed (Announcement No.: CN217041095U), in the above application, by setting a driving mechanism, a control panel, a single-chip microcomputer, an electrical stimulation pulse generator and an electrode sheet, the lower limb is placed in a limiting ring, and then the lower limb is fixed by the Velcro of the strap. The control panel inputs control instructions to the single-chip microcomputer, uses functional electrical stimulation and drives the flexion and extension of the lower limb at the same time, and stimulates the patient's lower limbs through the electrode sheet through low-pulse electricity, so that the muscle groups of the lower limbs are stimulated by low-pulse electricity and simulate normal movements in a certain order.

[0004] However, in actual use, the above-mentioned device has a limited range of exercise for the patient's lower limb muscle groups. Even if the patient's lower limbs are put in a "pedaling" state by simulating walking, the touch effect on the skin and muscles on the side away from the semicircular fixed structure cannot reach the degree of exercise, thereby reducing the overall stimulation and exercise effect of the device on the patient's lower limbs. In view of this, we propose a lower limb muscle atrophy prevention and rehabilitation training device. Summary of the invention

[0005] The purpose of the present invention is to provide a lower limb muscle atrophy prevention rehabilitation training device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a lower limb muscle atrophy prevention and rehabilitation training device, comprising a base, a bench is fixedly installed on the upper surface of the base, a stepper motor is fixedly installed on the side wall of the base, a threaded rod is fixedly installed on the output end of the stepper motor, the outer wall of the threaded rod is threadedly connected to a support seat, an annular fixing seat is slidably installed on the side wall of the support seat, an electrode sheet is fixedly installed on the inner surface of the annular fixing seat, a swing assembly that can synchronously massage the patient's lower limb epidermal muscles is arranged inside the annular fixing seat, and an auxiliary exercise assembly that synchronously exercises the patient's ankles is arranged inside the annular fixing seat.

[0007] Preferably, the swing assembly includes a contact wheel, which is rotatably mounted on the inner wall of an annular fixed seat, and the contact wheel is coaxially fixedly mounted with a half gear, and a large toothed plate is slidably mounted on the inner wall of the annular fixed seat, and an elastic member is fixedly connected between the upper and lower ends of the large toothed plate and the inner wall of the annular fixed seat, and the side wall of the large toothed plate is fixedly mounted with an L-shaped sleeve, and a lever is slidably mounted on the inner wall of the L-shaped sleeve, and a fitting spring is fixedly connected between the lever and the inner wall of the L-shaped sleeve. Guide grooves are provided on the left and right inner walls of the lever, and a rectangular groove is provided on the upper surface of the support seat, and a round rod is fixedly mounted on the inner wall of the rectangular groove, and a U-shaped frame is slidably mounted on the inner wall of the annular fixed seat, and a protrusion is fixedly mounted on the bottom of the U-shaped frame, and the top inner wall of the U-shaped frame is movably connected with an elastic rod through a tensioning assembly, and the side wall of the U-shaped frame is fixedly connected with a reset spring.

[0008] Preferably, the elastic member includes a long rod that passes through and is slidably connected to the large tooth plate, and a spring sleeved on the outside of the long rod, so that the large tooth plate can slide along the long rod under the influence of the elastic force of the spring, and there are multiple L-shaped sleeves, and two L-shaped sleeves are mirror-imaged on the left and right sides of the large tooth plate as a group, and multiple groups of L-shaped sleeves are evenly distributed on the side walls of the large tooth plate in a linear array.

[0009] Preferably, the lever and the protrusion are both arranged inside the rectangular groove, and at the same time, the guide groove is arranged in an inclined shape with one end close to the center of the lever higher and one end away from the center of the lever lower, and the round rod is kept flush with the bottom end of the guide groove, so that with the movement of the large tooth plate, the L-shaped sleeve drives the lever to slide along the inner surface of the rectangular groove until the lever approaches the round rod, and the round rod enters the guide groove, and as the lever continues to move, it is affected by the round rod and the guide groove to cause the lever to retract toward the inside of the L-shaped sleeve.

[0010] Preferably, the tensioning assembly includes a clamping block, a rectangular cavity is formed at the top of the U-shaped frame, the clamping block is slidably mounted on the inner wall of the rectangular cavity, a guide rod is fixedly mounted on the side wall of the rectangular cavity, a small spring is fixedly connected between the clamping block and the inner wall of the rectangular cavity, a T-shaped rod is fixedly mounted on the bottom inner wall of the rectangular cavity, a transmission column is slidably connected to the outer wall of the T-shaped rod, a transmission sleeve is hinged on the top of the transmission column, the end of the transmission sleeve is detachably connected to the end of the elastic rod, a contact ball is fixedly mounted on the arc-shaped outer wall of the transmission column, a spiral groove is formed on the inner wall of the clamping block on the side away from the small spring, and a hemispherical block is fixedly mounted on the inner wall of the bottom end of the clamping block.

[0011] Preferably, the number of the guide rods is four groups, and the inner wall of the clamping block is provided with a through hole matched with the guide rod to ensure the movement stability of the clamping block in the rectangular cavity. Specifically, the bottom end of the transmission column is provided with an arc-shaped protrusion, so that the transmission column squeezes the hemispherical block arranged on the inner wall of the bottom of the clamping block during the downward movement along the T-shaped rod, forcing the clamping block to move along the outer wall of the guide rod away from the transmission column, and the inner wall of the transmission column is provided with a T-shaped groove matched with the T-shaped rod, so that the transmission column will not detach from the T-shaped rod.

[0012] Preferably, the auxiliary exercise component includes a pedal, which is fixedly mounted on the bottom end of an annular fixing seat, a fixing rod is fixedly mounted on the inner wall of the annular fixing seat, a transmission cylinder is rotatably mounted on the inner wall of the bottom end of the annular fixing seat, a spiral chute is opened on the arc-shaped outer wall of the transmission cylinder, a circular hole whose outer diameter is adapted to the outer diameter of the transmission cylinder is opened on the inner wall of the U-shaped frame, a convex ball is fixedly mounted on the arc-shaped inner wall of the circular hole, and the convex ball is arranged inside the spiral chute, a driving bevel gear is fixedly mounted on the arc-shaped outer wall of the transmission cylinder, a driven bevel gear is rotatably mounted on the inner wall of the annular fixing seat, a notched gear is coaxially fixedly mounted on the driven bevel gear, a small tooth plate is slidably mounted on the inner wall of the bottom end of the annular fixing seat, a connecting spring is fixedly connected between the side wall of the small tooth plate and the inner wall of the bottom end of the annular fixing seat, a connecting rod is hinged on the outer wall of one end of the small tooth plate away from the annular fixing seat, and a lifting plate is hinged on the other end of the connecting rod, and one end of the lifting plate away from the connecting rod is hinged to the inner wall of the pedal.

[0013] Preferably, two sections of teeth are provided on the arc-shaped outer wall of the notched gear, and the length of one section of the teeth is set to be twice the length of the teeth at the other end, so that the notched gear is divided into two stages, one long and one short, during continuous rotation, which generates a pulling force on the small tooth plate toward one side of the annular fixed seat, and then cooperates with the connecting rod to drive the lifting plate to rotate with an intermittent slight sense of frustration.

[0014] Preferably, the interior of the pedal is provided with a torsion assembly for improving the exercise efficiency of the patient's lower limb ankle joint, the torsion assembly includes an arc block, the arc block is fixedly mounted on the upper surface of the pedal, a transmission rod is fixedly mounted on the inner wall of the pedal, the transmission rod penetrates and is rotatably connected to the lifting plate, a fan-shaped groove is provided on the upper surface of the pedal, a fan-shaped plate is rotatably connected to the inner wall of the fan-shaped groove, an arc-shaped spring sheet is fixedly connected between the side wall of the fan-shaped plate and the inner wall of the fan-shaped groove, one end of a hinged rod is hinged on the arc-shaped outer wall of the transmission rod, the other end of the hinged rod is movably connected to the end of the fan-shaped plate, a cylindrical groove is provided on the inner wall of the fan-shaped plate near one end of the hinged rod, a fixing column is fixedly mounted on the inner wall of the fan-shaped groove, and the fixing column is arranged inside the cylindrical groove.

[0015] Preferably, the area of ​​the fan-shaped groove is larger than that of the fan-shaped plate, so that the fan-shaped plate can rotate left and right inside the fan-shaped groove. A central cavity is opened on the inner wall at the center of the lifting plate, and the hinge rod and the fixed column are both arranged in the central cavity. The inner diameter of the cylindrical groove is larger than the outer diameter of the fixed column.

[0016] Compared with the prior art, the present invention provides a lower limb muscle atrophy prevention rehabilitation training device, which has the following beneficial effects: 1. The lower limb muscle atrophy prevention and rehabilitation training device is provided with a swing assembly. When the patient fixes the lower limbs on the annular fixing seat and simulates walking for exercise, due to the relative sliding between the annular fixing seat and the support seat, the transmission of the half gear and the large tooth plate and the intermittent driving of the projection by the lever under the influence of the round rod and the guide groove make the U-shaped frame drive the elastic rod to perform approximately disordered up and down reciprocating motion along the inner wall of the annular fixing seat under the influence of the reset spring, thereby rolling and massaging the skin and muscles of the patient's lower limbs on the side away from the annular fixing seat, achieving the effect of slight stimulation and recovery exercise, and ensuring the overall efficiency of the patient's lower limbs during exercise.

[0017] 2. The lower limb muscle atrophy prevention and rehabilitation training device is provided with an elastic component. When the U-shaped frame slides left and right along the inner wall of the annular fixing seat, the elastic rod attached to the surface of the patient's lower limb will rotate along the surface of the patient's lower limb due to friction, and cooperate with the guidance of the spiral groove and the contact ball, so that the arc-shaped protrusion at the bottom end of the rotating transmission column will eventually squeeze the hemispherical block, prompting the two groups of clamping blocks to expand to both sides, so that the clamping block and the spiral groove no longer guide the contact ball. At this time, the transmission column is driven to move upward due to the elastic force of the elastic rod, and finally, under the influence of the elastic force of the small spring, the clamping block moves close to one side of the transmission column until the two groups of clamping blocks fit each other. In this process, the elastic rod is repeatedly tightened and relaxed to enhance the massage effect of the elastic rod on the surface skin of the patient's lower limb, thereby improving the rehabilitation training quality of the device.

[0018] 3. The lower limb muscle atrophy prevention and rehabilitation training device is provided with an auxiliary training component. The U-shaped frame slides up and down in the annular fixed seat, and cooperates with the transmission of the convex ball and the spiral chute, so that the active bevel gear drives the driven bevel gear to rotate continuously. The two sections of teeth of different lengths on the arc-shaped outer wall of the notch gear are cooperated, so that the notch gear is divided into two stages of long and short during the continuous rotation process to generate a pulling force on the small tooth plate toward one side of the annular fixed seat, and then cooperates with the connecting rod to drive the lifting plate to rotate with an intermittent slight sense of frustration, so that when the patient's foot steps on the pedal, the front end of the sole of the foot will be lifted by the lifting plate and slightly swing upward, thereby exercising the patient's ankle joint, and further enhancing the rehabilitation training effect of the device on the patient's lower limbs.

[0019] 4. The lower limb muscle atrophy prevention and rehabilitation training device is provided with a twisting assembly. When the lifting plate is deflected upward with the transmission rod as the rotation center, due to the relative rotation of the transmission rod and the lifting plate, the hinge rod causes the fan-shaped plate to slide toward the side of the transmission rod, so that the arc-shaped outer wall of the fixed column will eventually contact the inner wall of the cylindrical groove, and cause the fan-shaped plate to randomly generate a deflection force to the left or right, so that when the patient's foot steps on the fan-shaped plate, the fan-shaped plate will twist slightly to the left or right, further performing twisting exercises on the patient's ankles, thereby improving the overall exercise effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention without the base and the bench; Figure 3 It is a schematic diagram of the cross-sectional structure of the support seat and the annular fixing seat of the present invention; Figure 4 This is a schematic diagram of the separation structure of the support seat and the swing assembly of the present invention; Figure 5 For the present invention Figure 4 A schematic diagram of the enlarged structure of the middle A area; Figure 6 It is a schematic diagram of the separation of the L-shaped sleeve and the lever of the present invention; Figure 7 It is a schematic diagram of a partial three-dimensional structure of a U-shaped frame of the present invention; Figure 8 This is a schematic diagram of the cross-sectional structure of the U-shaped frame of the present invention; Fig. 9 This is an exploded schematic diagram of the tension assembly of the present invention; Fig.10 It is a schematic diagram of the structure of the bending assembly of the present invention; Fig.11 It is a schematic diagram of a partial three-dimensional structure of the torsion assembly of the present invention; Fig.12 It is a schematic diagram of the partial cross-sectional structure of the transmission rod and the fan-shaped plate of the present invention.

[0021] In the figure: 1, base; 2, stool; 3, stepper motor; 4, threaded rod; 5, support seat; 6, annular fixed seat; 7, electrode sheet; 8, swing assembly; 81, contact wheel; 82, half gear; 83, large tooth plate; 84, elastic member; 85, L-shaped sleeve; 86, lever; 87, fitting spring; 88, guide groove; 89, round rod; 810, rectangular groove; 811, U-shaped frame; 812, bump; 813, elastic rod; 814, reset spring; 9, tension assembly; 91, clamping block; 92, guide rod; 93, small spring; 94, T-shaped rod; 95, transmission column; 96, transmission sleeve; 97 , contact ball; 98, spiral groove; 99, hemispherical block; 10, auxiliary exercise component; 101, pedal; 102, fixed rod; 103, transmission cylinder; 104, spiral chute; 105, convex ball; 106, active bevel gear; 107, driven bevel gear; 108, notched gear; 109, small tooth plate; 1010, connecting spring; 1011, connecting rod; 1012, lifting plate; 11, torsion component; 111, arc block; 112, transmission rod; 113, fan-shaped groove; 114, fan-shaped plate; 115, arc spring; 116, hinged rod; 117, cylindrical groove; 118, fixed column. DETAILED DESCRIPTION

[0022] like Figure 1-Figure 12 As shown, the present invention provides a technical solution: a lower limb muscle atrophy prevention and rehabilitation training device, comprising a base 1, a stool 2 is fixedly installed on the upper surface of the base 1, a stepping motor 3 is fixedly installed on the side wall of the base 1, a threaded rod 4 is fixedly installed on the output end of the stepping motor 3, the outer wall of the threaded rod 4 is threadedly connected with a support seat 5, an annular fixing seat 6 is slidably installed on the side wall of the support seat 5, an electrode sheet 7 is fixedly installed on the inner surface of the annular fixing seat 6, a swing assembly 8 for synchronously massaging the patient's lower limb epidermal muscles is arranged inside the annular fixing seat 6, and the swing assembly 8 includes a contact wheel 81, a half gear 82, a large tooth plate 83, an elastic member 84, an L-shaped sleeve 85, a lever 86, a fitting spring 87, a guide groove 88, a rectangular groove 810, a round rod 89, a U-shaped frame 811, a protrusion 812, an elastic rod 813 and a reset spring 814.

[0023] In one embodiment of the present invention, the contact wheel 81 is rotatably mounted on the inner wall of the annular fixed seat 6, the contact wheel 81 is coaxially fixedly mounted with a half gear 82, the inner wall of the annular fixed seat 6 is slidably mounted with a large tooth plate 83, the upper and lower ends of the large tooth plate 83 are fixedly connected to the inner wall of the annular fixed seat 6 with an elastic member 84, the side wall of the large tooth plate 83 is fixedly mounted with an L-shaped sleeve 85, the inner wall of the L-shaped sleeve 85 is slidably mounted with a lever 86, and the lever 86 is fixedly connected to the inner wall of the L-shaped sleeve 85. A fitting spring 87 is connected, guide grooves 88 are provided on the inner walls on the left and right sides of the lever 86, a rectangular groove 810 is provided on the upper surface of the support seat 5, a round rod 89 is fixedly installed on the inner wall of the rectangular groove 810, a U-shaped frame 811 is slidably installed on the inner wall of the annular fixed seat 6, a protrusion 812 is fixedly installed on the bottom of the U-shaped frame 811, an elastic rod 813 is movably connected to the inner wall of the top of the U-shaped frame 811 through a tension component 9, and a return spring 814 is fixedly connected to the side wall of the U-shaped frame 811.

[0024] For further information, please refer to the attached manual. Figure 1-Figure 3 Armrests are provided on the left and right sides of the stool 2, and an operation panel is provided on the upper surface of the armrests, so that the patient can operate manually when sitting on the stool 2. Specifically, a battery, a single-chip microcomputer and an electric stimulation pulse generator are provided inside the base 1. The battery is electrically connected to the operation panel, the stepper motor 3 and the single-chip microcomputer and the electric stimulation pulse generator. The stepper motor 3, the single-chip microcomputer and the electric stimulation pulse generator can be started and stopped by the operation panel. The output end of the electric stimulation pulse generator is electrically connected to the electrode sheet 7. The lower limbs are placed in the annular fixing seat 6. The patient inputs control instructions to the single-chip microcomputer through the operation panel and adjusts the size of the input value. Then the single-chip microcomputer starts the electric stimulation pulse generator and electrically stimulates the lower limbs through the electrode sheet 7, thereby assisting the patient's lower limbs. Muscle atrophy rehabilitation exercise, specifically, the support seat 5 is slidably connected to the upper surface of the base 1, so that under the drive of the stepper motor 3, the threaded rod 4 rotates, so that the support seat 5 drives the annular fixing seat 6 to move laterally along the upper surface of the base 1, and then adjusts the position of the support seat 5 and the annular fixing seat 6, so that the equipment can adapt to the different lower limb exercise needs of patients. Specifically, a T-shaped slider is provided on the outer wall of the annular fixing seat 6 on one side close to the support seat 5, and a T-shaped groove compatible with the above-mentioned T-shaped slider is provided on the outer wall of the support seat 5 on one side close to the annular fixing seat 6, so that the annular fixing seat 6 can only slide up and down along the upper surface of the support seat 5, so that the patient can place the lower limbs inside the annular fixing seat 6 to simulate walking posture for exercise.

[0025] Please refer to the instruction manual Figure 2-Figure 7In the embodiment of the present invention, a contact groove having a width greater than the thickness of the contact wheel 81 is provided on the inner wall of the upper surface of the support seat 5, and the arc-shaped outer wall of the contact wheel 81 passes through the contact groove and contacts the lower surface of the annular fixing seat 6, so that when the patient performs simulated walking posture exercise, relative sliding occurs between the annular fixing seat 6 and the support seat 5, thereby driving the contact wheel 81 to rotate, and at the same time, the half gear 82 meshes with the large tooth plate 83 to realize transmission, and the elastic member 84 includes a long rod that penetrates and is slidably connected to the large tooth plate 83 and a spring sleeved on the outside of the long rod. The spring is used to make the large toothed plate 83 slide along the long rod under the influence of the elastic force of the spring, so that during the sliding of the annular fixed seat 6, the large toothed plate 83 is intermittently transmitted by the half gear 82, and the elastic force of the elastic member 84 is cooperated to make the large toothed plate 83 intermittently move up and down along the inner wall of the support seat 5. In addition, a plurality of L-shaped sleeves 85 are provided, and two L-shaped sleeves 85 are mirror-imaged on the left and right sides of the large toothed plate 83 as a group, and multiple groups of L-shaped sleeves 85 are evenly distributed on the side walls of the large toothed plate 83 in a linear array.

[0026] Specifically, the lever 86 and the protrusion 812 are both arranged inside the rectangular groove 810. At the same time, the guide groove 88 is arranged in an inclined shape with one end close to the center of the lever 86 being higher and the other end away from the center of the lever 86 being lower. The round rod 89 is kept flush with the bottom end of the guide groove 88. As the large tooth plate 83 moves, the L-shaped sleeve 85 drives the lever 86 to slide along the inner surface of the rectangular groove 810 until the lever 86 approaches the round rod 89. The round rod 89 enters the guide groove 88. As the lever 86 continues to move, it is affected by the round rod 89 and the guide groove 88 to cause the lever 86 to shrink toward the inside of the L-shaped sleeve 85. Further, the U-shaped frame 81 There are multiple groups of U-shaped frames 811, and the multiple groups of U-shaped frames 811 are evenly distributed in a linear array inside the annular fixing seat 6, and the inner wall of the annular fixing seat 6 is provided with a transmission cavity whose width is adapted to the width of the U-shaped frame 811, so as to avoid the annular fixing seat 6 from interfering with the movement of the U-shaped frame 811. At the same time, the reset spring 814 is arranged between the multiple groups of U-shaped frames 811, and another group of reset springs 814 is arranged between the U-shaped frame 811 near the top of the annular fixing seat 6 and the inner wall of the annular fixing seat 6. Specifically, the elastic rod 813 is made of rubber or silicone rod, which can avoid damage to the patient's skin and achieve a comfortable massage effect.

[0027] Specifically, as the lever 86 slides up and down with the L-shaped sleeve 85 and the large toothed plate 83, the lever 86 will contact and press the protrusion 812, thereby driving the U-shaped frame 811 to slide a certain distance along the inner wall of the annular fixing seat 6. After approaching the round rod 89, the lever 86 is driven by the guide groove 88 to retract and enter the L-shaped sleeve 85. At this time, the lever 86 no longer affects the protrusion 812, and then under the influence of the elastic force of the return spring 814, the U-shaped frame 811 performs a return movement along the inner wall of the annular fixing seat 6, and when the semi-gear 82 transmits the large toothed plate 83 next time, it is again affected by the lever 86 and slides upward along the inner wall of the annular fixing seat 6, cooperating with the elastic rod 813 movably arranged at the end of the U-shaped frame 811 to roll and massage the skin and muscles of the patient's lower limbs away from the side of the annular fixing seat 6, so as to achieve the effect of slight stimulation and recovery exercise, thereby ensuring the overall efficiency of the patient's lower limbs during exercise.

[0028] Please refer to the instruction manual Figure 8-Figure 9 In the embodiment of the present invention, the tensioning component 9 includes a clamping block 91, a rectangular cavity is opened at the top of the U-shaped frame 811, the clamping block 91 is slidably installed on the inner wall of the rectangular cavity, a guide rod 92 is fixedly installed on the side wall of the rectangular cavity, a small spring 93 is fixedly connected between the clamping block 91 and the inner wall of the rectangular cavity, a T-shaped rod 94 is fixedly installed on the bottom inner wall of the rectangular cavity, a transmission column 95 is slidably connected to the outer wall of the T-shaped rod 94, a transmission sleeve 96 is hinged at the top of the transmission column 95, and the end of the transmission sleeve 96 is detachably connected to the end of the elastic rod 813, a contact ball 97 is fixedly installed on the arc-shaped outer wall of the transmission column 95, a spiral groove 98 is opened on the inner wall of the side of the clamping block 91 away from the small spring 93, and a hemispherical block 99 is fixedly installed on the inner wall of the bottom end of the clamping block 91.

[0029] Furthermore, there are two sets of elastic components 9, and the two sets of elastic components 9 are mirror-imaged at the top ends of the left and right sides of the U-shaped frame 811, so as to provide guidance and control for the contraction and relaxation of the elastic rod 813 at both ends of the elastic rod 813. At the same time, there are two sets of clamping blocks 91, and the two sets of clamping blocks 91 are symmetrically arranged with the vertical central axis of the rectangular cavity as the symmetry axis, so that the transmission of the transmission column 95 is more stable. In addition, there are four sets of guide rods 92, and the inner wall of the clamping block 91 is provided with a through hole adapted to the guide rod 92 to ensure that the clamping block 91 is clamped. The movement stability of the block 91 in the rectangular cavity, specifically, an arc-shaped protrusion is provided at the bottom end of the transmission column 95, so that the transmission column 95 can squeeze the hemispherical block 99 provided on the inner wall of the bottom of the clamping block 91 during the downward movement along the T-shaped rod 94, forcing the clamping block 91 to move along the outer wall of the guide rod 92 away from the transmission column 95. Specifically, a T-shaped groove adapted to the T-shaped rod 94 is provided on the inner wall of the transmission column 95, so that the transmission column 95 will not detach from the T-shaped rod 94, and at the same time limit the transmission column 95 to be able to move only in the vertical direction.

[0030] At the same time, the contact ball 97 is arranged inside the spiral groove 98, and when the two groups of clamping blocks 91 are combined, the spiral grooves 98 opened inside the two groups of clamping blocks 91 fit together and form a complete spiral groove. When the U-shaped frame 811 slides left and right along the inner wall of the annular fixing seat 6, the elastic rod 813 attached to the surface of the patient's lower limb will rotate along the surface of the patient's lower limb due to friction, thereby driving the transmission sleeve 96 to rotate, and then driving the transmission column 95 to rotate. During the rotation of the transmission column 95, it is affected by the contact ball 97 and the spiral groove 98 to drive the transmission column 95 along the inner wall of the clamping block 91. The wall moves downward in the vertical direction until the arc-shaped protrusion at the bottom end of the transmission column 95 squeezes the hemispherical block 99, causing the two groups of clamping blocks 91 to expand to both sides so that the spiral groove 98 no longer affects the contact ball 97. At this time, the transmission column 95 is driven to move upward due to the elastic force of the elastic rod 813. Finally, under the influence of the elastic force of the small spring 93, the clamping block 91 moves close to one side of the transmission column 95 until the two groups of clamping blocks 91 fit together. In this process, the elastic rod 813 is repeatedly tightened and relaxed to enhance the massage effect of the elastic rod 813 on the surface skin of the patient's lower limbs and improve the rehabilitation training quality of the device.

[0031] Please refer to the instruction manual Figure 7-Figure 8 as well as Fig.10 In an embodiment of the present invention, an auxiliary exercise component 10 for synchronously exercising the ankle of the patient is arranged inside the annular fixing seat 6, and the auxiliary exercise component 10 includes a pedal 101, and the pedal 101 is fixedly installed at the bottom end of the annular fixing seat 6, and a fixing rod 102 is fixedly installed on the inner wall of the annular fixing seat 6, and a transmission cylinder 103 is rotatably installed on the inner wall of the bottom end of the annular fixing seat 6, and a spiral chute 104 is opened on the arc-shaped outer wall of the transmission cylinder 103, and a circular hole with an outer diameter matching the outer diameter of the transmission cylinder 103 is opened on the inner wall of the U-shaped frame 811, and a convex ball 105 is fixedly installed on the arc-shaped inner wall of the circular hole, and the convex ball 105 is arranged on the spiral chute 104. Internally, a driving bevel gear 106 is fixedly installed on the arc-shaped outer wall of the transmission cylinder 103, a driven bevel gear 107 is rotatably installed on the inner wall of the annular fixed seat 6, a notched gear 108 is coaxially fixedly installed on the driven bevel gear 107, a small tooth plate 109 is slidably installed on the inner wall of the bottom end of the annular fixed seat 6, a connecting spring 1010 is fixedly connected between the side wall of the small tooth plate 109 and the inner wall of the bottom end of the annular fixed seat 6, a connecting rod 1011 is hinged on the outer wall of the end of the small tooth plate 109 away from the annular fixed seat 6, and a lifting plate 1012 is hinged on the other end of the connecting rod 1011, and the end of the lifting plate 1012 away from the connecting rod 1011 is hinged to the inner wall of the pedal 101.

[0032] Specifically, the pedal 101 is arranged in an L shape, so that the patient has a fulcrum for the foot when fixing the lower limbs, which is more ergonomic. At the same time, a circular hole adapted to the fixing rod 102 is opened on the inner wall of the U-shaped frame 811 to ensure the relative stability of the U-shaped frame 811 in the movement inside the annular fixing seat 6. In addition, the transmission cylinder 103 is sleeved on the outer side of the fixing rod 102, so that there will be no motion interference between the two, and the stable rotation of the transmission cylinder 103 can also be ensured. Further, when the U-shaped frame 811 is affected by the protrusion 812 and slides along the inner wall of the annular fixing seat 6, the spiral chute 104 is driven by the convex ball 105 to drive the transmission cylinder 103 to rotate, and then drive the active bevel gear 106 to rotate. Specifically, the driven bevel gear 107 is meshed with the active bevel gear 106. The transmission is realized by merging, thereby driving the notched gear 108 to rotate through the transmission of the active bevel gear 106 and the driven bevel gear 107. Specifically, two sections of teeth are arranged on the arc-shaped outer wall of the notched gear 108, and the length of one section of teeth is set to twice the length of the teeth at the other end, so that the notched gear 108 is divided into two stages, one long and one short, during the continuous rotation, to generate a pulling force on the small tooth plate 109 toward the side of the annular fixing seat 6, and then cooperates with the connecting rod 1011 to drive the lifting plate 1012 to rotate with an intermittent slight sense of frustration, so that when the patient's foot steps on the pedal 101, the front end part of the sole of the foot will be lifted by the lifting plate 1012 and swing slightly upward, thereby exercising the patient's ankle joint, and further enhancing the rehabilitation training effect of the device on the patient's lower limbs.

[0033] Please refer to the instruction manual Figure 11-Figure 12 In the embodiment of the present invention, a torsion assembly 11 for improving the training efficiency of the patient's lower limb ankle joint is arranged inside the pedal 101, and the torsion assembly 11 includes an arc block 111, and the arc block 111 is fixedly installed on the upper surface of the pedal 101, and a transmission rod 112 is fixedly installed on the inner wall of the pedal 101, and the transmission rod 112 penetrates and is rotatably connected to the lifting plate 1012, and a fan-shaped groove 113 is opened on the upper surface of the pedal 101, and the inner wall of the fan-shaped groove 113 is rotatably connected to the fan-shaped Plate 114, an arc-shaped spring piece 115 is fixedly connected between the side wall of the fan-shaped plate 114 and the inner wall of the fan-shaped groove 113, one end of a hinged rod 116 is hinged on the arc-shaped outer wall of the transmission rod 112, and the other end of the hinged rod 116 is movably connected to the end of the fan-shaped plate 114, and a cylindrical groove 117 is formed on the inner wall of the fan-shaped plate 114 near one end of the hinged rod 116, and a fixing column 118 is fixedly installed on the inner wall of the fan-shaped groove 113, and the fixing column 118 is arranged inside the cylindrical groove 117.

[0034] It is worth noting that a storage groove compatible with the lifting plate 1012 is provided on the upper surface of the pedal 101, so that the lifting plate 1012 can be completely received in the storage groove. At the same time, an arc block 111 is arranged on the lifting plate 1012 near the bending position of the L-shaped pedal 101 to adapt to the patient's arch of the foot, thereby preventing the patient from being injured during exercise, and at the same time increasing the force contact area of ​​the foot during exercise, thereby protecting the patient's foot from injury. At the same time, the lifting plate 1012 is hinged to the pedal 101 through the transmission rod 112. When the lifting plate 1012 is pulled by the connecting rod 1011, it rotates with the transmission rod 112 as the rotation center. Specifically, the area of ​​the fan-shaped groove 113 is larger than the fan-shaped plate 114, so that the fan-shaped plate 114 can rotate left and right inside the fan-shaped groove 113. In addition, a central cavity is provided on the inner wall at the center of the lifting plate 1012, and the hinged rod 116 and the fixed column 118 are both arranged in the central cavity to facilitate the stability of the transmission.

[0035] Furthermore, one end of the fan-shaped plate 114 close to the hinge rod 116 is arranged in a straight rod shape, and a movable groove is provided on the inner wall of the straight rod end, so that the end of the hinge rod 116 that is movably connected to the fan-shaped plate 114 can be rotated up and down and can also be rotated left and right. Specifically, a cylindrical rod is rotatably installed on the end of the hinge rod 116 close to the fan-shaped plate 114. The cylindrical rod is arranged vertically, and the cylindrical rod can be rotated at its connection with the hinge rod 116. At the same time, a straight groove with a width adapted to the outer diameter of the cylindrical rod is provided on the inner wall of one end of the fan-shaped plate 114 close to the hinge rod 116, so that the hinge rod 116 and the cylindrical rod can slide in the straight groove, so that the lifting plate 1012 can rotate with the transmission rod 112 as the rotation. When the rotation center is deflected upward, due to the relative rotation of the transmission rod 112 and the lifting plate 1012, the hinge rod 116 will generate a pulling force on the fan plate 114 toward the side of the transmission rod 112. Specifically, the inner diameter of the cylindrical groove 117 is larger than the outer diameter of the fixed column 118, so that when the fan plate 114 slides toward the side of the transmission rod 112, the arc-shaped outer wall of the fixed column 118 will eventually contact the inner wall of the cylindrical groove 117, and cause the fan plate 114 to randomly generate a deflection force to the left or right, so that when the patient's foot steps on the fan plate 114, the fan plate 114 will twist slightly to the left or right, further performing twisting exercise on the patient's ankle, thereby improving the overall exercise effect of the device.

[0036] In the present invention, when in use, after the patient sits on the stool 2, the operation panel on the stool 2 is used to control the start of the stepper motor 3, and cooperates with the threaded rod 4 to adjust the support seat 5 to the side where the patient's lower limbs need to be exercised, and then the stepper motor 3 is turned off. At this time, the patient places the lower limbs on the annular fixing seat 6, and sequentially puts the elastic rod 813 on the outside of the lower limbs from top to bottom. At this time, the control command is first input to the single-chip microcomputer through the operation panel, and the size of the input value is adjusted. Then the single-chip microcomputer starts the electric stimulation pulse generator, and electrically stimulates the lower limbs through the electrode sheet 7, thereby assisting the patient's lower limb muscle atrophy rehabilitation exercise.

[0037] During the electrical stimulation process, the patient controls the lower limbs to step downward to simulate the walking posture, and drives the annular fixing seat 6 through the lower limbs to make the annular fixing seat 6 realize up and down reciprocating motion on the surface of the support seat 5. At this time, due to the relative sliding between the annular fixing seat 6 and the support seat 5, the contact wheel 81 is driven to rotate, and the large tooth plate 83 is intermittently transmitted by the half gear 82, and the elastic force of the elastic member 84 is cooperated to make the large tooth plate 83 intermittently move up and down along the inner wall of the support seat 5, thereby prompting the L-shaped sleeve 85 to drive the lever 86 to slide along the inner surface of the rectangular groove 810, until the lever 86 approaches the round rod 89, and the round rod 89 enters the guide groove 88, and then As the lever 86 continues to move, it is affected by the round rod 89 and the guide groove 88 to cause the lever 86 to retract toward the inside of the L-shaped sleeve 85. At this time, the lever 86 no longer affects the protrusion 812, and then under the influence of the elastic force of the reset spring 814, the U-shaped frame 811 performs a reset movement along the inner wall of the annular fixing seat 6, and when the half gear 82 transmits the large tooth plate 83 next time, it is again affected by the lever 86 to slide upward along the inner wall of the annular fixing seat 6, and cooperates with the elastic rod 813 movably arranged at the end of the U-shaped frame 811 to roll and massage the skin and muscles of the patient's lower limbs away from the side of the annular fixing seat 6, so as to achieve the effect of slight stimulation and recovery exercise, and ensure the overall efficiency of the patient's lower limbs during exercise.

[0038] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A lower limb muscle atrophy prevention rehabilitation training device, comprising a base (1), a stool (2) fixedly mounted on the upper surface of the base (1), a stepping motor (3) fixedly mounted on the side wall of the base (1), a threaded rod (4) fixedly mounted on the output end of the stepping motor (3), a support seat (5) threadedly connected to the outer wall of the threaded rod (4), an annular fixing seat (6) slidably mounted on the side wall of the support seat (5), an electrode sheet (7) fixedly mounted on the inner surface of the annular fixing seat (6), characterized in that: The annular fixing seat (6) is provided with a swinging assembly (8) capable of synchronously massaging the superficial muscles of the patient's lower limbs, and the annular fixing seat (6) is provided with an auxiliary exercise assembly (10) capable of synchronously exercising the patient's ankles.

2. A lower limb muscle atrophy prevention rehabilitation training device according to claim 1, characterized in that: The swing-back assembly (8) comprises a contact wheel (81), the contact wheel (81) being rotatably mounted on the inner wall of an annular fixed seat (6), a half gear (82) being coaxially fixedly mounted on the contact wheel (81), a large toothed plate (83) being slidably mounted on the inner wall of the annular fixed seat (6), an elastic member (84) being fixedly connected between the upper and lower ends of the large toothed plate (83) and the inner wall of the annular fixed seat (6), an L-shaped sleeve (85) being fixedly mounted on the side wall of the large toothed plate (83), a lever (86) being slidably mounted on the inner wall of the L-shaped sleeve (85), and a lever (86) being slidably mounted between the lever (86) and the inner wall of the L-shaped sleeve (85). A fitting spring (87) is fixedly connected thereto; guide grooves (88) are provided on the inner walls on the left and right sides of the lever (86); a rectangular groove (810) is provided on the upper surface of the support seat (5); a round rod (89) is fixedly installed on the inner wall of the rectangular groove (810); a U-shaped frame (811) is slidably installed on the inner wall of the annular fixing seat (6); a protrusion (812) is fixedly installed on the bottom of the U-shaped frame (811); an elastic rod (813) is movably connected to the inner wall of the top end of the U-shaped frame (811) via a loose assembly (9); and a return spring (814) is fixedly connected to the side wall of the U-shaped frame (811).

3. A lower limb muscle atrophy prevention rehabilitation training device according to claim 2, characterized in that: The elastic member (84) comprises a long rod penetrating and slidably connected to the large tooth plate (83) and a spring sleeved on the outside of the long rod. The number of L-shaped sleeves (85) is plural, and two L-shaped sleeves (85) are arranged as a group in mirror image on the left and right sides of the large tooth plate (83), and the multiple groups of L-shaped sleeves (85) are evenly distributed on the side wall of the large tooth plate (83) in a linear array.

4. A lower limb muscle atrophy prevention rehabilitation training device according to claim 2, characterized in that: The lever (86) and the protrusion (812) are both arranged inside the rectangular groove (810), the guide groove (88) is arranged in an inclined shape with one end close to the center of the lever (86) being higher and the other end away from the center of the lever (86) being lower, and the round rod (89) is kept flush with the bottom end of the guide groove (88).

5. The lower limb muscle atrophy prevention and rehabilitation training device according to claim 2, characterized in that: The tensioning assembly (9) comprises a clamping block (91), a rectangular cavity is formed at the top of the U-shaped frame (811), the clamping block (91) is slidably mounted on the inner wall of the rectangular cavity, a guide rod (92) is fixedly mounted on the side wall of the rectangular cavity, a small spring (93) is fixedly connected between the clamping block (91) and the inner wall of the rectangular cavity, a T-shaped rod (94) is fixedly mounted on the bottom inner wall of the rectangular cavity, a transmission column (95) is slidably connected to the outer wall of the T-shaped rod (94), a transmission sleeve (96) is hingedly connected to the top of the transmission column (95), the end of the transmission sleeve (96) is detachably connected to the end of the elastic rod (813), a contact ball (97) is fixedly mounted on the arc-shaped outer wall of the transmission column (95), a spiral groove (98) is formed on the inner wall of the clamping block (91) on the side away from the small spring (93), and a hemispherical block (99) is fixedly mounted on the inner wall of the bottom end of the clamping block (91).

6. A lower limb muscle atrophy prevention rehabilitation training device according to claim 5, characterized in that: The number of the guide rods (92) is four, and the inner wall of the clamping block (91) is provided with a through hole matched with the guide rods (92), the bottom end of the transmission column (95) is provided with an arc-shaped protrusion, and the inner wall of the transmission column (95) is provided with a T-shaped groove matched with the T-shaped rod (94).

7. A lower limb muscle atrophy prevention rehabilitation training device according to claim 2, characterized in that: The auxiliary exercise assembly (10) comprises a pedal (101), the pedal (101) being fixedly mounted on the bottom end of an annular fixing seat (6), a fixing rod (102) being fixedly mounted on the inner wall of the annular fixing seat (6), a transmission cylinder (103) being rotatably mounted on the inner wall of the bottom end of the annular fixing seat (6), a spiral chute (104) being provided on the arc-shaped outer wall of the transmission cylinder (103), a circular hole having an outer diameter matching the outer diameter of the transmission cylinder (103) being provided on the inner wall of the U-shaped frame (811), a convex ball (105) being fixedly mounted on the arc-shaped inner wall of the circular hole, the convex ball (105) being arranged inside the spiral chute (104), and an active cone being fixedly mounted on the arc-shaped outer wall of the transmission cylinder (103). A gear (106) is rotatably mounted on the inner wall of the annular fixing seat (6), a notched gear (108) is coaxially fixedly mounted on the driven bevel gear (107), a small tooth plate (109) is slidably mounted on the inner wall of the bottom end of the annular fixing seat (6), a connecting spring (1010) is fixedly connected between the side wall of the small tooth plate (109) and the inner wall of the bottom end of the annular fixing seat (6), a connecting rod (1011) is hingedly connected to the outer wall of one end of the small tooth plate (109) away from the annular fixing seat (6), a lifting plate (1012) is hingedly connected to the other end of the connecting rod (1011), and one end of the lifting plate (1012) away from the connecting rod (1011) is hingedly connected to the inner wall of the pedal (101).

8. The lower limb muscle atrophy prevention and rehabilitation training device according to claim 7, characterized in that: Two sections of teeth are arranged on the arc-shaped outer wall of the notched gear (108), and the length of one section of the teeth is set to be twice the length of the other section of the teeth.

9. The lower limb muscle atrophy prevention and rehabilitation training device according to claim 7, characterized in that: The pedal (101) is provided with a twisting assembly (11) for improving the training efficiency of the patient's lower limb ankle joints. The twisting assembly (11) comprises an arc block (111). The arc block (111) is fixedly mounted on the upper surface of the pedal (101). A transmission rod (112) is fixedly mounted on the inner wall of the pedal (101). The transmission rod (112) penetrates and is rotatably connected to the lifting plate (1012). The upper surface of the pedal (101) is provided with a fan-shaped groove (113). The inner wall of the fan-shaped groove (113) is rotatably connected to a fan-shaped plate (114). An arc-shaped spring sheet (115) is fixedly connected between the side wall of the fan-shaped plate (114) and the inner wall of the fan-shaped groove (113); one end of a hinged rod (116) is hingedly connected to the arc-shaped outer wall of the transmission rod (112); the other end of the hinged rod (116) is movably connected to the end of the fan-shaped plate (114); a cylindrical groove (117) is formed on the inner wall of the fan-shaped plate (114) near one end of the hinged rod (116); a fixing column (118) is fixedly installed on the inner wall of the fan-shaped groove (113); and the fixing column (118) is arranged inside the cylindrical groove (117).

10. The lower limb muscle atrophy prevention and rehabilitation training device according to claim 9, characterized in that: The area of ​​the fan-shaped groove (113) is larger than that of the fan-shaped plate (114); a central cavity is opened on the inner wall at the center of the lifting plate (1012); and the hinge rod (116) and the fixed column (118) are both arranged in the central cavity; the inner diameter of the cylindrical groove (117) is larger than the outer diameter of the fixed column (118).

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