Apparatus for multi-joint lower limb exercise

Abstract

An apparatus for multi-joint lower limb exercise is disclosed, which comprises: a first supporting part; a second supporting part, rotatably connected to the first supporting part; and a hydraulic device, connected to the first and the second supporting parts respectively by the two ends thereof, for providing a hydraulic pressure to the first and the second supporting parts while the first supporting part is rotated about the second supporting part. As a user is fitted with the aforesaid apparatus to perform a lower limb exercise, such as exercising its knee joint or ankle joint, a comparatively better exercise effect can be achieved as the magnitude of the hydraulic pressure provided by the hydraulic device is adjustable by the use of a throttle valve of the hydraulic device.

1 . An apparatus for multi-joint lower limb exercise, adapted for supporting the lower limb of a user, comprising: 
 a first supporting part;    a second supporting part, rotatably connected to the first supporting part; and    a hydraulic device, connected to the first and the second supporting parts respectively by the two ends thereof, for providing a hydraulic pressure to the first and the second supporting parts while the first supporting part is rotated about the second supporting part.    
   
   
       2 . The apparatus of  claim 1 , wherein the first supporting part, further comprising: 
 a rotatable frame; and    a supporting frame with adjustable length, having an end thereof connected to the rotatable frame.    
   
   
       3 . The apparatus of  claim 1 , wherein the second supporting part, further comprising: 
 a rotatable frame; and    a supporting frame with adjustable length, having an end thereof connected to the rotatable frame.    
   
   
       4 . The apparatus of  claim 1 , wherein the second supporting part, further comprising: 
 a rotatable plate; and    a set of rolling wheel, connected to the rotatable plate.    
   
   
       5 . The apparatus of  claim 4 , wherein the set of rolling wheel includes at least a fixing device and at least a rolling wheel.  
   
   
       6 . The apparatus of  claim 1 , wherein the hydraulic device, further comprising: 
 a hydraulic cylinder;    a hydraulic tube;    at least a conversion valve, each used for connecting the hydraulic cylinder to the hydraulic tube for controlling a liquid to flow therebetween; and    a throttle valve, for controlling the flux of the liquid flowing in the hydraulic tube so as to adjust the magnitude of the hydraulic pressure provided by the hydraulic device.    
   
   
       7 . The apparatus of  claim 1 , wherein a rotation angle detector is arranged between the first supporting part and the second support part for detecting an angle of rotation as the first supporting part is rotating about the second supporting part.  
   
   
       8 . The apparatus of  claim 7 , wherein the hydraulic device, further comprising: 
 a hydraulic cylinder;    a hydraulic tube;    at least a conversion valve, each used for connecting the hydraulic cylinder to the hydraulic tube for controlling a liquid to flow therebetween; and    a throttle valve, for controlling the flux of the liquid flowing in the hydraulic tube according to the angle of rotation detected by the rotation angle detector so as to maintain the hydraulic pressure provided by the hydraulic device at a specific magnitude while the first supporting part is rotating about the second supporting part.    
   
   
       9 . The apparatus of  claim 8 , wherein the throttle valve is a solenoid valve.  
   
   
       10 . An apparatus for multi-joint lower limb exercise, adapted for supporting the lower limb of a user, comprising: 
 a first supporting part;    a second supporting part, rotatably connected to the first supporting part;    a third supporting part, rotatably connected to the second supporting part;    a first hydraulic device, connected to the first and the second supporting parts respectively by the two ends thereof, for providing a first hydraulic pressure to the first and the second supporting parts while the first supporting part is rotated about the second supporting part; and    a second hydraulic device, connected to the second and the third supporting parts respectively by the two ends thereof, for providing a second hydraulic pressure to the second and the third supporting parts while the second supporting part is rotated about the third supporting part.    
   
   
       11 . The apparatus of  claim 10 , wherein the first supporting part, further comprising: 
 a rotatable frame; and    a supporting frame with adjustable length, having an end thereof connected to the rotatable frame.    
   
   
       12 . The apparatus of  claim 10 , wherein the second supporting part, further comprising: 
 a rotatable frame; and    a supporting frame with adjustable length, having an end thereof connected to the rotatable frame.    
   
   
       13 . The apparatus of  claim 10 , wherein the third supporting part, further comprising: 
 a rotatable plate; and    a set of rolling wheel, connected to the rotatable plate.    
   
   
       14 . The apparatus of  claim 13 , wherein the set of rolling wheel includes at least a fixing device and at least a rolling wheel.  
   
   
       15 . The apparatus of  claim 10 , wherein the first hydraulic device, further comprising: 
 a hydraulic cylinder;    a hydraulic tube;    at least a conversion valve, each used for connecting the hydraulic cylinder to the hydraulic tube for controlling a liquid to flow therebetween; and    a throttle valve, for controlling the flux of the liquid flowing in the hydraulic tube so as to adjust the magnitude of the first hydraulic pressure provided by the first hydraulic device.    
   
   
       16 . The apparatus of  claim 10 , wherein a first rotation angle detector is arranged between the first supporting part and the second support part for detecting a first angle of rotation as the first supporting part is rotating about the second supporting part.  
   
   
       17 . The apparatus of  claim 16 , wherein the first hydraulic device, further comprising: 
 a hydraulic cylinder;    a hydraulic tube;    at least a conversion valve, each used for connecting the hydraulic cylinder to the hydraulic tube for controlling a liquid to flow therebetween; and    a throttle valve, for controlling the flux of the liquid flowing in the hydraulic tube according to the first angle of rotation detected by the rotation angle detector so as to maintain the first hydraulic pressure provided by the first hydraulic device at a specific magnitude while the first supporting part is rotating about the second supporting part.    
   
   
       18 . The apparatus of  claim 10 , wherein the second hydraulic device, further comprising: 
 a hydraulic cylinder;    a hydraulic tube;    at least a conversion valve, each used for connecting the hydraulic cylinder to the hydraulic tube for controlling a liquid to flow therebetween; and    a throttle valve, for controlling the flux of the liquid flowing in the hydraulic tube so as to adjust the magnitude of the second hydraulic pressure provided by the second hydraulic device.    
   
   
       19 . The apparatus of  claim 10 , wherein a second rotation angle detector is arranged between the second supporting part and the third support part for detecting a second angle of rotation as the second supporting part is rotating about the third supporting part.  
   
   
       20 . The apparatus of  claim 19 , wherein the second hydraulic device, further comprising: 
 a hydraulic cylinder;    a hydraulic tube;    at least a conversion valve, each used for connecting the hydraulic cylinder to the hydraulic tube for controlling a liquid to flow therebetween; and    a throttle valve, for controlling the flux of the liquid flowing in the hydraulic tube according to the second angle of rotation detected by the rotation angle detector so as to maintain the second hydraulic pressure provided by the second hydraulic device at a specific magnitude while the second supporting part is rotating about the third supporting part.    
   
   
       21 . The apparatus of  claim 20 , wherein the throttle valve is a solenoid valve.