The utility model relates to the technical field of orthopedics, and discloses a
knee joint brace which comprises an arc-shaped plate, one side of the arc-shaped plate is fixedly connected with a first limiting plate, the surface of the first limiting plate is fixedly connected with a fixing
assembly, one side of the first limiting plate is provided with a groove, the inside of the groove is fixedly connected with a
bandage, and the surface of the first limiting plate is fixedly connected with the fixing
assembly. A second limiting plate is slidably connected to the surface of the
bandage, a first fixing plate is fixedly connected to one side of the second limiting plate, and a first moving plate is fixedly connected to one end of the first fixing plate. According to the
knee joint brace, through the arrangement of a fixing
pipe, a limiting strip and a limiting spring, when a patient needs to walk, the limiting strip is fixed through the fixing
pipe on the second moving plate, and when the patient needs to straighten the leg, the limiting strip at one end of the limiting spring straightens the leg of the patient with the help of elastic force, and the knee of the patient is injured and cannot exert force well, the
knee joint brace is fixed; the patient can walk by means of the elastic force of the limiting springs to protect the joints of the patient.