1. Unidirectional resistance rotary damper comprises a hinge and a cover body connected with the rotating shaft, wherein the rotating shaft comprises an inner part of the cover and an exposed section connected with the cover body, wherein the exposed section is sheathed with a sealed cover, the sealing cover is connected with the cover body through a sealing ring, and a sealing cavity filled with a damping oil is synthesized by the sealing cover, the inner wall of the cover body and the surface of the embedded section, and the inner wall of the lid is provided with a two-facing protruding separator The end of the separator plate is matched with the surface of the containing section, the sealing cavity is characterized in that the inclusion section is provided with a two V-shaped groove, and the end of the card groove has a gap between the inner wall of the cover body, and a blade is arranged in the card groove, the blade is provided with a plurality of oil holes, the outer end part of the blade and the wall of the cover body are free of clearance to form an oil seal structure, wherein the separating plate and the blade are separated into four cavities by the said sealing cavity; In the flip opening and resetting process, the blades are respectively fitted with the wall surfaces of the two sides, and the blades are arranged with a first notch on the wall surface of the card groove on which the blade of the clamshell reduction depends.Small Uni-directional Rotary Dampers
2. The unidirectional resistance rotary damper, as described in claim 1, is characterized in that the inclusion section is provided with a shaft shoulder, the shaft shoulder is provided with two horn-shaped oil trough which allows the damping oil to pass through, the oil trough extends along the circumference direction, and the cross section is gradually reduced along the direction of the separator plate as described in the flip opening process.
3. The unidirectional resistance rotary damper, as described in claim 1 or 2, is characterized in that the cross-section of the containing section is an ellipse with a second notch, and the opening position of the second notch is in the same side as the big one of the horn-shaped oil trough; During the flip opening process, the end of the separator plate is swept over the oval part with the second notch, then the ellipse without the second notch is swept, and the oil leakage in the process of slow down is first big and small, and the slow drop effect is first and then slow.Small Uni-directional Rotary Dampers
4. The unidirectional resistance rotary damper, as described in claim 3, is characterized in that the end center position of the containing section is provided with a a cylindrical structure, wherein the body part of the lid is provided with a circular hole matched with the cylindrical structure.Small Uni-directional Rotary Dampers