Abstract: A valve clamping apparatus includes a supporting portion having a certain length, a clamping portion including a pair of clamping arms that can be relatively opened and closed, and an adjusting portion. The adjusting portion is arranged outside the supporting portion, the adjusting portion is deformable, and the adjusting portion is a three-dimensional structure having a certain length, width, and thickness. When the pair of clamping arms is closed relative to the adjusting portion, the adjusting portion deforms. A deformation degree of the adjusting portion in a thicknesswise direction is greater than a deformation degree of the adjusting portion in a lengthwise direction, which is greater than a deformation degree of the adjusting portion in a widthwise direction.

Abstract: Disclosed are a valve clamping device with an adjustable bearing force and a valve clamping system. The valve clamping device with an adjustable bearing force comprises: a support portion comprising a connecting end and a free end disposed oppositely; a hollow adjustment portion made of a shape memory material, one end of which is sleeved outside the connecting end and connected to the support portion, and another end of which hangs in air; a clamping portion enclosed outside the adjustment portion; and a driving portion connected to the clamping portion to drive the clamping portion to open or close around the adjustment portion; wherein the free end of the support portion is within the adjustment portion, and a proximal end of the adjustment portion is spaced apart from a proximal end of the support portion.