CN210472917U - Multi-mode training running table - Google Patents

Abstract

The utility model provides a multi-mode training runs platform, including running the platform, the handrail, the ramp plate, the handrail sets up in running platform both sides, the ramp plate sets up in running platform rear side, driving motor sets up in the base front end, driving motor with turn to the gearbox and be connected, turn to two-way output about the speed reducer, set up belt pulley A at the output shaft both ends, set up the initiative dabber at the rear side of output shaft, initiative dabber both ends link firmly with base both sides support, the both ends of initiative dabber set up belt pulley B respectively, two driving roll medial extremity pass through the bearing and are connected with the initiative dabber rotation, set up transmission clutch between two driving roll outsides and the belt pulley B that corresponds, the base rear portion sets up driven dabber, two driven voller are worn to establish at driven dabber middle part, run and. By arranging the left running belt and the right running belt and two sets of transmission clutch devices, the starting and stopping of each running belt can be conveniently controlled, and the possibility is provided for the targeted training of the hemiplegic patients to the sick side.

Description

Multi-mode training running table

Technical Field

The utility model relates to a rehabilitation training device especially relates to a multi-mode training runs platform.

Background

The hemiplegic patients mostly show motor and/or sensory dysfunction of one side of the body, and the motor dysfunction of the hemiplegic patients mainly shows that the flexor is hypertonic in the upper limb and the extensor is spastic in the lower limb. Utilize the apparatus to make the patient obtain whole body or local motion function, the sense function resumes, but the rehabilitation training device does not have the equipment to unilateral low limbs training specially at present, some equipment is provided with the structure of running the area of branch leg, but can only to the damping of running the area alone of every, can't use two of motor control alone to run the area operation, can't control every to run and open alone, the patient that leads to hemiplegia or slightly hemiplegia is difficult to use to run or to walk the equipment and take exercise, because the low limbs activity is uncoordinated easily tumbles on training equipment, the area both sides of running of ordinary running platform are equipment shell promptly, there is not the buffer zone, can't break away from the running belt on running the platform rapidly, the security is not enough.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the above problems existing in the prior rehabilitation training running table.

In order to solve the problems existing in the prior rehabilitation training running table, the utility model provides a multi-mode training running table, which comprises a running table, handrails and a slope plate, wherein the handrails are arranged at two sides of the running table, the slope plate is arranged at the rear side of the running table, the running table comprises a base, a driving motor, a steering gearbox, a driving roller, a driven roller, a transmission clutch device and a running belt, the driving motor is arranged at the front end of the base and fixedly connected with the base, the driving motor is connected with the steering gearbox, an output shaft is arranged at the output end of the steering reducer, the steering reducer can bidirectionally output in left and right directions through the output shaft, flywheels are arranged at two side parts of the output shaft, belt pulleys A are arranged at two ends of the output shaft outside two flywheels, two ends of the output shaft are in key connection with the belt pulleys A, a driving mandrel is arranged at the rear side, the two ends of the driving mandrel are respectively provided with a belt pulley B, the belt pulley B is rotationally connected with the driving mandrel through a bearing, the belt pulley B is adaptive to the belt pulley A, a transmission belt is respectively arranged between the belt pulley B and the belt pulley A on the two sides, the middle part of the driving mandrel is penetrated with two driving rollers, the driving rollers are of a tubular structure, the inner side ends of the two driving rollers are rotationally connected with the driving mandrel through a bearing, a transmission clutch device is arranged between the outer sides of the two driving rollers and the corresponding belt pulley B, the outer sides of the two driving rollers are rotationally connected with the driving mandrel through the transmission clutch device, the transmission clutch device can control whether the power of the belt pulley B on the corresponding side is output to the driving rollers or not, the rear part of the base is provided with a driven mandrel, the axis of the driven mandrel is parallel to the axis of, the driven roller is rotatably connected with the driven mandrel through a bearing, a running belt is arranged between the driving roller and the driven roller, a running plate is arranged below the upper running belt, two sides of the running plate are fixedly connected with the base, and safety pedals are arranged on two sides of the running belt.

The transmission clutch device further comprises a brake lining, a spline, a transmission block, a shifting fork A, a shifting fork B, a push rod and a control frame, wherein the inner wall of the outer side of the driving roller is provided with a step, the small diameter section in the driving roller is provided with the brake lining, the brake lining is arranged on the driving mandrel in a penetrating way and is fixedly connected with the driving mandrel, the spline is uniformly arranged on the spline shaft sleeve along the circumferential direction and is fixedly connected with the spline shaft sleeve, the shoulder part of the step of the inner wall of the driving roller is provided with a key groove matched with the spline, the transmission block is of an annular structure, the transmission block is arranged on the driving mandrel in a penetrating way, the end part of the spline is fixedly connected with the annular bottom surface at one side of the transmission block, the annular bottom surface at the other side of the transmission block is provided with transmission pins uniformly arranged along the circumferential direction, transmission grooves corresponding to the number of the transmission pins are arranged at, set up annular fork groove of pulling out on transmission piece circumference side, pull out fork B and insert and locate the fork inslot of pulling out fork, the jaw of pulling out fork A is articulated with the jaw of pulling out fork B, pulls out fork A top and horizontal articulated with the push rod, and the push rod can rotate around, sets up the control frame above the transmission piece, control frame and base fixed connection, the below of pulling out fork A and the articulated portion of push rod sets up vertical articulated shaft, and vertical articulated shaft will pull out fork A and control frame articulated together, and both sides set up the non return dog respectively around the push rod, and non return dog tip is provided with the guide bar, sets up the guiding hole in the relevant position of control frame left and right sides wall, and the guide bar is worn to establish in the guiding hole, sets up the non return spring between non return.

Further, the front part and the rear part of each handrail are provided with an inserted rod, the two side parts of the base corresponding to the inserted rods are provided with tubular stand columns, the pipe orifice of each stand column inserted with the inserted rod is provided with an annular clamping sleeve, two opposite side surfaces of each stand column are respectively provided with a fixed anti-backlash roller assembly and an adjustable anti-backlash roller assembly, the fixed anti-backlash roller assembly is arranged below the adjustable anti-backlash roller assembly, the fixed anti-backlash roller assembly comprises a support plate A and a fixed rotating shaft arranged on the two side walls of the support plate A, the axis of the fixed rotating shaft is vertical to the axis of the stand column, a concave roller A is arranged on the rotating shaft, the side part of the stand column corresponding to the concave roller A is provided with a square hole, so that the concave roller A protrudes into the inner cavity of the stand column from the square hole, the adjustable anti-backlash roller assembly comprises a support plate B, U type adjusting plate, a moving rotating shaft and, the U-shaped adjusting plate and the concave roller B are both arranged on the movable rotating shaft in a penetrating way, horizontal long holes are arranged on two side walls of the support plate B, two ends of the movable rotating shaft penetrate through the two side walls of the U-shaped adjusting plate and then are arranged in the horizontal long holes on the two side walls of the support plate B in a penetrating way, a screw hole is arranged at the bottom of the U-shaped adjusting plate, an adjusting bolt is arranged at the position of the outer side wall of the support plate B corresponding to the screw hole, the adjusting bolt is rotatably connected with the support plate B through a clamp spring, the adjusting bolt is in threaded connection with the U-shaped adjusting plate through the screw hole, the position of the U-shaped adjusting plate can be adjusted by rotating the adjusting bolt, the side part of the upright post corresponding to the concave roller B is provided with a square hole, so that the concave roller B protrudes into the inner cavity of the upright post from the square hole, the concave surfaces of the concave roller A and the concave roller B are both adapted to the side surface of the inserted link, the middle part of each handrail is provided with an electric push rod, the fixed end of the electric push rod is hinged with the base, and the telescopic end of the electric push rod is hinged with the bottom surface of the middle part of the handrail.

The front part of the base is provided with a roller carrier, one end of the roller carrier is hinged with the bottom of the base through a U-shaped plate, two corners of the other end of the roller carrier are provided with rollers, the middle part of the front end of the base is provided with a lifting electric push rod, the fixed end of the lifting electric push rod is hinged with the base support, and the telescopic end of the lifting electric push rod is hinged with the middle part of the roller carrier.

And further, adjustable feet are arranged at two corner parts of the rear end of the base.

An infrared sensor is further arranged at the front part of the safety pedal.

And further arranging a non-slip mat on the upper surface of the safety pedal.

The utility model has the advantages of: through setting up about two independent running belts and the transmission clutch of each running belt, drive two through independent motor and run the area, can be convenient through the opening and stopping of every running belt of transmission clutch independent control, for the pertinence training of hemiplegia patient to sick side provides probably, can guarantee that two running belts can not appear the speed difference when two running belts move simultaneously. Set up the handrail in running platform both sides to set up safety pedal in running area both sides, can make the patient needn't stop running the area in the training and can be convenient leave run the area, guarantee safety, set up slope board person of facilitating the use and run the platform from top to bottom, infrared sensor's setting can reflect untimely at the patient, and when the gait appears the stagnation, the treadmill does not run, guarantees training person's safety.

Drawings

Fig. 1 is a schematic view of the appearance structure of the present invention.

Fig. 2 is a schematic structural diagram of the present invention after the casing is removed.

Fig. 3 is a schematic structural view of fig. 2 with the running belt removed.

Figure 4 is a schematic view of the drive roll and its peripheral configuration.

FIG. 5 is a schematic view of the drive spindle and transmission clutch with the single drive roll removed.

Fig. 6 is a sectional structure diagram of the transmission clutch device.

FIG. 7 is a schematic view of a transmission clutch assembly.

Fig. 8 is a schematic view of the reverse viewing angle assembly of fig. 7.

FIG. 9 is a schematic view of the structure of pulley B.

FIG. 10 is a sectional view of the drive roll.

Fig. 11 is a schematic view of the peripheral structure of the control frame.

Fig. 12 is a schematic view of the armrest structure.

FIG. 13 is a top view of the adjustable anti-backlash roller assembly.

Fig. 14 is a sectional structure diagram of the fixed anti-backlash roller assembly.

FIG. 15 is a side sectional structure of the adjustable anti-backlash roller assembly.

Detailed Description

In order to explain the utility model more fully, the utility model provides an implementation example. These examples are merely illustrative of the present invention and do not limit the scope of the present invention.

The invention is explained in further detail with reference to the drawings, in which the reference symbols are: 1: a handrail; 2: a column; 3: a ramp plate; 4: adjustable ground feet; 5: a base; 6: an electric push rod; 7: a roller frame; 8: a roller; 9: a drive motor; 10: lifting the electric push rod; 11: a flywheel; 12: a drive belt; 13 a push rod; 14: an infrared sensor; 15: running the belt; 16: a steering gear box; 17: a drive roll; 18: a safety pedal; 19: a driven roller; 20: a belt pulley A; 21: a belt pulley B; 22: an active mandrel; 23: shifting a fork A; 24: a brake lining; 25: a spline; 26: a transmission block; 27: shifting a fork B; 28: a transmission groove; 29: a drive pin; 30: a keyway; 31: a control frame; 32: a guide bar; 33: fixing an anti-backlash roller assembly; 34: the adjustable gap eliminating roller assembly; 35: a support plate A; 36: fixing the rotating shaft; 37: a concave roller A; 38: a support plate B; 39: u-shaped adjusting plate, 40: moving the rotating shaft; 41: a concave roller; 42: adjusting the bolt; 43: a longitudinal hinge axis; 44: inserting a rod; 45: a card sleeve; 46: and a clamp spring.

In the scheme, the direction of the front part refers to the direction of one end of the treadmill provided with the driving motor, and the direction of the rear part refers to the direction of one end of the slope board.

As shown in the attached drawings, the multi-mode training running table comprises a running table, handrails 1 and a slope plate 3, wherein the handrails are arranged on two sides of the running table, the slope plate is arranged on the rear side of the running table, the running table comprises a base 5, a driving motor 9, a steering gearbox 16, a driving roller 17, a driven roller 19, a transmission clutch device and a running belt 15, the driving motor 9 is arranged at the front end of the base 5 and fixedly connected with the base 5, the driving motor 9 is connected with the steering gearbox 16, an output shaft is arranged at the output end of the steering gearbox, the steering gearbox can bidirectionally output in the left direction and the right direction through the output shaft, flywheels 11 are arranged on two sides of the output shaft, belt pulleys A20 are arranged at two ends of the output shaft outside the two flywheels 11, two ends of the output shaft are in key connection with belt pulleys A20, a driving mandrel 22 is arranged on the rear side of the output shaft, two ends of the driving mandrel 22 are respectively provided with a belt pulley B21, a belt pulley B21 is rotationally connected with the driving mandrel 22 through a bearing, a belt pulley B21 is adapted to a belt pulley A20, a transmission belt 12 is respectively arranged between the belt pulleys B21 and A20 on two sides, two driving rollers 17 are arranged in the middle of the driving mandrel 22 in a penetrating way, the driving rollers 17 are of a tubular structure, the inner side ends of the two driving rollers 17 are rotationally connected with the driving mandrel 22 through bearings, a transmission clutch device is arranged between the outer sides of the two driving rollers 17 and the corresponding belt pulley B21, the outer sides of the two driving rollers 17 are rotationally connected with the driving mandrel 22 through the transmission clutch device, the transmission clutch device can control whether the power of the belt pulley B21 on the corresponding side is output to the driving rollers 17 or not, the rear part of the base 5 is provided with a driven mandrel, the axis of the driven mandrel is parallel, two driven rollers 19 penetrate through the middle of the driven mandrel, the driven rollers 19 are rotatably connected with the driven mandrel through bearings, two running belts 15 are respectively arranged between the driving rollers 17 and the driven rollers 19 on two sides, a running plate is arranged below the running belt 15 on the upper layer, two sides of the running plate are fixedly connected with the base 5, and safety pedals 18 are arranged on two sides of the running belt 15.

In the scheme, the transmission clutch device comprises a brake lining 24, a spline 25, a transmission block 26, a shifting fork A23, a shifting fork B27, a push rod 13 and a control frame 31, wherein the inner wall of the outer side of the driving roller 17 is provided with steps, the brake lining 24 is arranged on the inner small diameter section of the driving roller 17, the brake lining 24 is arranged on the driving mandrel in a penetrating way and is fixedly connected with the driving mandrel, the spline 25 is uniformly arranged on the spline shaft sleeve along the circumferential direction and is fixedly connected with the spline shaft sleeve, the shoulder part of the step of the inner wall of the driving roller 17 is provided with a key groove 30 matched with the spline 25, the transmission block 26 is of an annular structure, the transmission block 26 is arranged on the driving mandrel 22 in a penetrating way, the end part of the spline 25 is fixedly connected with the annular bottom surface of one side of the transmission block 26, the annular bottom surface of the other side of the transmission block 26 is provided with the transmission pins 29 uniformly arranged, the transmission grooves 28 are distributed along the circumference, the transmission grooves 28 are arranged from shallow to deep along the reverse direction of the rotation of the belt pulley, the side surface of the circumference of the transmission block 26 is provided with an annular shifting fork groove, the shifting fork B27 is inserted in the shifting fork groove, the fork head of the shifting fork A23 is hinged with the fork head of the shifting fork B27, the top of the shifting fork A23 is transversely hinged with the push rod 13, the push rod 13 can rotate back and forth, a control frame 31 is arranged above the transmission block 26, the control frame 31 is fixedly connected with the base 5, a longitudinal hinge shaft 43 is arranged below the hinged part of the shifting fork A23 and the push rod 13, the longitudinal hinge shaft 43 hinges the shifting fork A23 and the control frame 31 together, check blocks 33 are respectively arranged at the front side and the rear side of the push rod 13, a guide rod 32 is arranged at the end part of each check block 33, the control frame 31 is provided with guide holes at corresponding positions of left and right side walls, the guide rod 32 is arranged in the guide holes in a penetrating way, and the check spring is arranged between the check block 33 and the side wall of the control frame 31. When the push rod is pulled outwards, the shift fork A is equivalent to the action of a lever, and drives the shift fork B to push the transmission block inwards along the driving mandrel, so that the transmission pin on the transmission block is separated from the transmission groove on the belt pulley B, the end surface of the inner side of the spline shaft sleeve is contacted and rubbed with the end surface of the outer side of the brake bushing 24, so that the driving roller on the corresponding side stops rotating, the push rod is pushed towards the non-return stop block at the corresponding position and clamped on the end surface of the non-return stop block, the non-return stop block keeps the thrust on the push rod under the action of the non-return spring; when pulling the push rod to the inside, shifting fork A drives shifting fork B and promotes the transmission piece along the initiative dabber to the outside, makes the driving pin embedding transmission groove, and the spline has slided one end distance along the keyway to the outside this moment, still has partial spline to inlay in the keyway, drives the drive roll rotation of corresponding one side through belt pulley B this moment. In the scheme, the spline shaft sleeve, the transmission block and the driving mandrel are all in sliding friction, so that in implementation, for reducing abrasion, self-lubricating bushes can be arranged between the spline shaft sleeve and the driving mandrel and between the transmission block and the driving mandrel, or the friction surface is subjected to quenching and tempering. Compare single motor and only can drive a race area operation, this scheme is through the application of dual output gearbox, can make the treadmill use single motor simultaneous drive two race areas to move, can make two race areas of motor simultaneous drive move or an arbitrary race area of individual drive move through transmission clutch, can guarantee that two race areas can not appear the speed difference when two race areas move simultaneously.

In order to facilitate the height adjustment of the handrail and prevent the handrail from shaking, the front part and the rear part of each handrail are provided with inserted rods 44, the positions of the two side parts of the base 5 corresponding to the inserted rods 44 are provided with tubular upright posts 2, the pipe openings of the upright posts 2 inserted into the inserted rods 44 are provided with annular clamping sleeves 45, the two opposite side surfaces of each upright post are respectively provided with a fixed anti-backlash roller assembly and an adjustable anti-backlash roller assembly, the fixed anti-backlash roller assembly is arranged below the adjustable anti-backlash roller assembly, the fixed anti-backlash roller assembly 33 comprises a support plate A35 and fixed rotating shafts 36 arranged on the two side walls of the support plate A, the axis of the fixed rotating shaft 36 is vertical to the axis of the upright post 2, a concave roller A37 is arranged on the fixed rotating shaft, the side part of the upright post 2 corresponding to the concave roller A37 is provided with a square hole, so that the concave roller A37 protrudes into the inner cavity of the upright post 2 from the square, A movable rotating shaft 40 and a concave roller B41, a concave roller B41 is arranged between two side walls of a U-shaped adjusting plate, the U-shaped adjusting plate and the concave roller B are all arranged on the movable rotating shaft in a penetrating way, horizontal long holes are arranged on two side walls of a support plate B, two ends of the movable rotating shaft 40 penetrate through the two side walls of the U-shaped adjusting plate and then are arranged in the horizontal long holes on two side walls of a support plate B38, a screw hole is arranged at the bottom of the U-shaped adjusting plate 39, an adjusting bolt 42 is arranged at the position of the outer side wall of the support plate B38 corresponding to the screw hole, the adjusting bolt 42 is rotatably connected with the support plate B38 through a clamp spring 46, the adjusting bolt is in threaded connection with the U-shaped adjusting plate 39 through the screw hole, the U-shaped adjusting plate can be adjusted by rotating the adjusting bolt, a square hole is arranged at the side part of the upright post 2 corresponding to the concave roller B, the, the fixed end of the electric push rod 6 is hinged with the base 5, and the telescopic end is hinged with the bottom surface of the middle part of the handrail 1.

The front part of the base 5 is provided with a roller carrier 7, one end of the roller carrier 7 is hinged with the bottom of the base 5 through a U-shaped plate, two corners of the other end of the roller carrier 7 are provided with rollers 8, the middle part of the front end of the base 5 is provided with a lifting electric push rod 10, the fixed end of the lifting electric push rod 10 is hinged with a support of the base 5, and the telescopic end of the lifting electric push rod 10 is hinged with the middle part of the roller carrier 7. Like this through the flexible of electric putter 10 that rises, can adjust the running platform inclination, and then adjust training intensity.

Adjustable feet 4 can be arranged at two corners of the rear end of the base 5 for improving the stability of the running platform.

An infrared sensor 14 is provided in front of the safety pedal 18. Only when an object is positioned in the middle of the infrared sensor, the motor in the treadmill can make operation action, the infrared sensor can be set in a state that the patient does not timely reflect the gait, and when the gait is stopped, the treadmill does not operate, so that the danger caused by movement of the running belt when the patient is not ready can be prevented, and the safety in the using process is ensured.

To improve safety and prevent the user from slipping, a non-slip mat may be provided on the upper surface of the safety pedal 18.

After the embodiments of the present invention have been described in detail, those skilled in the art can clearly understand that various changes and modifications can be made without departing from the scope and spirit of the above claims, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention all fall within the scope of the technical solution of the present invention, and the present invention is not limited to the embodiments of the examples given in the specification.

Claims (7)

1. The utility model provides a multi-mode training race platform, includes and runs platform, handrail, ramp, the handrail sets up in running platform both sides, and the ramp sets up in running platform rear side, its characterized in that: the running platform comprises a base, a driving motor, a steering gearbox, a driving roller, a driven roller, a transmission clutch device and a running belt, wherein the driving motor is arranged at the front end of the base and fixedly connected with the base, the driving motor is connected with the steering gearbox, an output shaft is arranged at the output end of the steering reducer, the steering reducer can bidirectionally output in the left direction and the right direction through the output shaft, flywheels are arranged at the two sides of the output shaft, belt pulleys A are arranged at the two ends of the output shaft outside the two flywheels, the two ends of the output shaft are connected with the belt pulleys A in a key mode, a driving mandrel is arranged at the rear side of the output shaft, the axis of the driving mandrel is parallel to the axis of the output shaft, the two ends of the driving mandrel are fixedly connected with brackets at the two sides of the base, belt pulleys B are respectively arranged at the two ends of the driving, two driving rollers are arranged in the middle of the driving mandrel in a penetrating way, the driving rollers are of tubular structures, the end parts of the inner sides of the two driving rollers are rotationally connected with the driving mandrel through bearings, a transmission clutch device is arranged between the outer sides of the two driving rollers and the corresponding belt pulley B, the outer sides of the two driving rollers are rotationally connected with the driving mandrel through the transmission clutch device, the transmission clutch device can control whether the power of the belt pulley B on the corresponding side is output to the driving rollers, a driven mandrel is arranged at the rear part of the base, the axis of the driven mandrel is parallel to the axis of the driving mandrel, two ends of the driven mandrel are fixedly connected with the base bracket, two driven rollers penetrate through the middle part of the driven mandrel, the driven rollers are rotationally connected with the driven mandrel through bearings, two running belts are respectively arranged between the driving roller and the driven rollers at the two sides, the running board is arranged below the upper running belt, two sides of the running board are fixedly connected with the base, and safety pedals are arranged on two sides of the running belt.

2. A multimodal training treadmill as recited in claim 1, wherein: the transmission clutch device comprises a brake lining, a spline, a transmission block, a shifting fork A, a shifting fork B, a push rod and a control frame, wherein the inner wall of the outer side of the driving roller is provided with a step, the small diameter section in the driving roller is provided with the brake lining, the brake lining is arranged on the driving mandrel in a penetrating way and is fixedly connected with the driving mandrel, the spline is uniformly arranged on the spline sleeve along the circumferential direction and is fixedly connected with the spline sleeve, the shoulder part of the step of the inner wall of the driving roller is provided with a key groove matched with the spline, the transmission block is of an annular structure, the transmission block is arranged on the driving mandrel in a penetrating way, the end part of the spline is fixedly connected with the annular bottom surface at one side of the transmission block, the annular bottom surface at the other side of the transmission block is provided with transmission pins uniformly arranged along the circumferential direction, transmission grooves corresponding to the number of the transmission pins are arranged at, set up annular fork groove of pulling out on transmission piece circumference side, pull out fork B and insert and locate the fork inslot of pulling out fork, the jaw of pulling out fork A is articulated with the jaw of pulling out fork B, pulls out fork A top and horizontal articulated with the push rod, and the push rod can rotate around, sets up the control frame above the transmission piece, control frame and base fixed connection, the below of pulling out fork A and the articulated portion of push rod sets up vertical articulated shaft, and vertical articulated shaft will pull out fork A and control frame articulated together, and both sides set up the non return dog respectively around the push rod, and non return dog tip is provided with the guide bar, sets up the guiding hole in the relevant position of control frame left and right sides wall, and the guide bar is worn to establish in the guiding hole, sets up the non return spring between non return.

3. A multimodal training treadmill as recited in claim 2, wherein: the front part and the rear part of each handrail are provided with an inserted rod, the two side parts of the base corresponding to the inserted rods are provided with tubular stand columns, the pipe orifice of each stand column, which is inserted with the inserted rod, is provided with an annular clamping sleeve, the two opposite side surfaces of each stand column are respectively provided with a fixed anti-backlash roller assembly and an adjustable anti-backlash roller assembly, the fixed anti-backlash roller assembly is arranged below the adjustable anti-backlash roller assembly, the fixed anti-backlash roller assembly comprises a support plate A and a fixed rotating shaft arranged on the two side walls of the support plate A, the axis of the fixed rotating shaft is vertical to the axis of the stand column, a concave roller A is arranged on the rotating shaft, the side part of the stand column corresponding to the concave roller A is provided with a square hole, so that the concave roller A protrudes into the inner cavity of the stand column from the square hole, the adjustable anti-backlash roller assembly comprises a support plate B, U type adjusting plate, the U-shaped adjusting plate and the concave roller B are both arranged on the movable rotating shaft in a penetrating way, horizontal long holes are arranged on two side walls of the support plate B, two ends of the movable rotating shaft penetrate through the two side walls of the U-shaped adjusting plate and then are arranged in the horizontal long holes on the two side walls of the support plate B in a penetrating way, a screw hole is arranged at the bottom of the U-shaped adjusting plate, an adjusting bolt is arranged at the position of the outer side wall of the support plate B corresponding to the screw hole, the adjusting bolt is rotatably connected with the support plate B through a clamp spring, the adjusting bolt is in threaded connection with the U-shaped adjusting plate through the screw hole, the position of the U-shaped adjusting plate can be adjusted by rotating the adjusting bolt, the side part of the upright post corresponding to the concave roller B is provided with a square hole, so that the concave roller B protrudes into the inner cavity of the upright post from the square hole, the concave surfaces of the concave roller A and the concave roller B are both adapted to the side surface of the inserted link, the middle part of each handrail is provided with an electric push rod, the fixed end of the electric push rod is hinged with the base, and the telescopic end of the electric push rod is hinged with the bottom surface of the middle part of the handrail.

4. A multimodal training treadmill as recited in claim 3, wherein: the front part of the base is provided with a roller carrier, one end of the roller carrier is hinged with the bottom of the base through a U-shaped plate, two corners of the other end of the roller carrier are provided with rollers, the middle part of the front end of the base is provided with a lifting electric push rod, the fixed end of the lifting electric push rod is hinged with the base support, and the telescopic end of the lifting electric push rod is hinged with the middle part of the roller carrier.

5. A multimodal training treadmill as recited in claim 4, wherein: and adjustable feet are arranged at two corner parts of the rear end of the base.

6. A multimodal training treadmill as recited in claim 5, further comprising: an infrared sensor is arranged at the front part of the safety pedal.

7. A multimodal training treadmill as recited in claim 6, wherein: and the upper surface of the safety pedal is provided with a non-slip mat.

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