Abstract: The present disclosure provides a sensor and a knee joint brace. In the sensor and a knee joint brace, the sensor includes: a sensor bottom shell, a synchronous rotating component, an angle sensing instrument, and a circuit component arranged in sequence from bottom to top. One end of the synchronous rotating component is rotatably connected with the sensor bottom shell, and is used for connecting a support arm of the knee joint brace, and the other end of the synchronous rotating component is connected to the angle sensing instrument. The angle sensing instrument is electrically connected to the circuit component. The synchronous rotating component is arranged, and a movement state of a support arm of the knee joint brace is synchronized. The angle sensing instrument is arranged and is connected to the synchronous rotating component.

Abstract: A magnetic buckle structure for a knee-joint brace and a knee-joint brace having the same. The magnetic buckle structure for the knee-joint brace includes a joint brace body, a lower magnetic buckle arranged on the joint brace body, and an upper magnetic buckle arranged on the lower magnetic buckle and magnetically connected to the lower magnetic buckle. Through the arrangement of the upper magnetic buckle and the lower magnetic buckle, a bandage of the knee-joint brace can be magnetically fixed or replaced, whereby being convenient for a user to wear and remove the knee-joint brace.

Abstract: The present disclosure relates to the technical field of a rehabilitation protective gear, in particular to a telescopic adjusting structure of a support arm and a knee brace. The telescopic adjusting structure of the support arm comprises an adjusting arm and a support arm guard movably connected along the length direction, and further comprises a telescopic adjusting mechanism. The telescopic adjusting mechanism comprises a pushing component, which is movably provided on the support arm guard; a locking component, one end of which is connected with the pushing component, and the other end of which is clamped with the adjusting arm, wherein when the pushing component moves, the locking component is disengaged from or locked with the adjusting arm. The telescopic adjusting mechanism is provided, so that the extension length matching between the adjusting arm and the support arm guard is adjusted.

Abstract: The present disclosure provides a sensor and a knee joint brace. In the sensor and a knee joint brace, the sensor includes: a sensor bottom shell, a synchronous rotating component, an angle sensing instrument, and a circuit component arranged in sequence from bottom to top. One end of the synchronous rotating component is rotatably connected with the sensor bottom shell, and is used for connecting a support arm of the knee joint brace, and the other end of the synchronous rotating component is connected to the angle sensing instrument. The angle sensing instrument is electrically connected to the circuit component. The synchronous rotating component is arranged, and a movement state of a support arm of the knee joint brace is synchronized. The angle sensing instrument is arranged and is connected to the synchronous rotating component.

Abstract: A magnetic buckle structure for a knee-joint brace and a knee-joint brace having the same. The magnetic buckle structure for the knee-joint brace includes a joint brace body, a lower magnetic buckle arranged on the joint brace body, and an upper magnetic buckle arranged on the lower magnetic buckle and magnetically connected to the lower magnetic buckle. Through the arrangement of the upper magnetic buckle and the lower magnetic buckle, a bandage of the knee-joint brace can be magnetically fixed or replaced, whereby being convenient for a user to wear and remove the knee-joint brace.

Abstract: The present disclosure relates to the technical field of a rehabilitation protective gear, in particular to a telescopic adjusting structure of a support arm and a knee brace. The telescopic adjusting structure of the support arm comprises an adjusting arm and a support arm guard movably connected along the length direction, and further comprises a telescopic adjusting mechanism. The telescopic adjusting mechanism comprises a pushing component, which is movably provided on the support arm guard; a locking component, one end of which is connected with the pushing component, and the other end of which is clamped with the adjusting arm, wherein when the pushing component moves, the locking component is disengaged from or locked with the adjusting arm. The telescopic adjusting mechanism is provided, so that the extension length matching between the adjusting arm and the support arm guard is adjusted.

Abstract: The present invention relates to the field of nonlinear optical crystal materials and provided herein a Li4Sr(BO3)2 compound, a Li4Sr(BO3)2 nonlinear optical crystal as well as preparation method and use thereof. The Li4Sr(BO3)2 nonlinear optical crystal has a second harmonic conversion efficiency at 1064 nm of about two times that of a KH2PO4 (KDP) crystal, and an UV absorption cut-off edge less than 190 nm. Furthermore, the crystal did not disintegrate. By flux method with Li2O, Li2O—B2O and Li2O—B2O3—LiF used as flux agent, large-size and transparent Li4Sr(BO3)2 nonlinear optical crystal can grow. The Li4Sr(BO3)2 crystal had stable physicochemical properties, moderate hardness, and was easy to cut, processing, preserve and use. Therefore it can be used for preparing nonlinear optical devices and thus for developing nonlinear optical applications in the ultraviolet and deep-ultraviolet band.

Abstract: The present invention relates to the field of nonlinear optical crystal materials and provided herein a Li4Sr(BO3)2 compound, a Li4Sr(BO3)2 nonlinear optical crystal as well as preparation method and use thereof. The Li4Sr(BO3)2 nonlinear optical crystal has a second harmonic conversion efficiency at 1064 nm of about two times that of a KH2PO4 (KDP) crystal, and an UV absorption cut-off edge less than 190 nm. Furthermore, the crystal did not disintegrate. By flux method with Li2O, Li2O-B2O and Li2O-B2O3-LiF used as flux agent, large-size and transparent Li4Sr(BO3)2 nonlinear optical crystal can grow. The Li4Sr(BO3)2 crystal had stable physicochemical properties, moderate hardness, and was easy to cut, processing, preserve and use. Therefore it can be used for preparing nonlinear optical devices and thus for developing nonlinear optical applications in the ultraviolet and deep-ultraviolet band.