The present invention relates to a jokyokgi, more particularly applied to open the knee, including the foot and the calf while sitting comfortably in the chair, with minimal heat loss knee series, and or useful to the user with the pain the users knees by simple operation as well as easy to use, regardless of the difference it relates to a jokyokgi that can selectively adjust the temperature inside jokyokgi. According to the present invention in jokyokgi, a guide groove on one side is formed, so that the users foot is put received in the interior receiving space the main body and formed: mounted slidably move up and down along the guide groove, the users legs in the pair of legs so that they can be introduced in the receiving space a slide plate which is a ball mutually away form with: a first heating element disposed within the upper side of the body: the main body: a plurality of the protective bar and is arranged around the first heat generating element a second heating element that is disposed on the bottom side with: scaffold is positioned on the upper side of the second heating element: and a first heating element and the second heating element and is electrically connected to a control unit for controlling the power supply to the first heat generating element and second heat generating element: including but, the slide plate is a top plate formed with a first pair of grooves on the lower side Located below the top plate, in correspondence to the first pair of grooves on the upper side of a pair of the leg forming the second input ball grooves are formed lower plate And upper and lower locking member to fall in contact with each other or fixed It includes.본 발명은 족욕기에 관한 것으로, 더욱 상세하게는 열손실을 최소화하면서 의자에 편안하게 앉은 상태에서 발과 종아리를 포함한 무릎까지 열을 가해 무릎이 시리거나 통증이 있는 사용자에게 유용하고, 사용자의 무릎 높이 차이에 상관없이 사용할 수 있을 뿐만 아니라 쉽고 간편한 조작으로 족욕기 내부 온도를 선택적으로 조절할 수 있는 족욕기에 관한 것이다.본 발명에 따르면 족욕기에 있어서, 일측에 가이드홈이 형성되고, 내측에 사용자의 다리가 투입되어 수용되도록 수용공간이 형성된 본체와: 가이드홈을 따라 상하로 슬라이드 이동 가능하게 장착되고, 사용자의
