Adaptive vibration isolator

An adaptive vibration isolator, comprising a hydraulic system, a first elastic member, a second elastic member, an upper top plate, and a vibration energy consumption device;

• the hydraulic system comprises a hydraulic cylinder, a hydraulic fluid, a piston and a piston rod, and the hydraulic fluid is filled in a hydraulic chamber of the hydraulic cylinder;
• the piston is arranged within the hydraulic cylinder, is in slide connection to an inner wall of the hydraulic cylinder and separates the hydraulic chamber into a first hydraulic chamber and a second hydraulic chamber;
• a first though hole is formed on the piston, and the first hydraulic chamber is communicated with the second hydraulic chamber via the first through hole;
• and, one end of the piston rod is connected to the piston, a passage running through the piston rod and the piston is formed, the piston rod penetrates through and is in slide connection to the top of the hydraulic cylinder, and the part where the piston rod is in slide connection to the top of the hydraulic cylinder is sealed;
• the upper top plate comprises a bearing portion and a transmission portion having one end fixedly connected to the bearing portion, the transmission portion is penetrated through the passage and is in slide connection to an inner wall of the passage, and the part where the transmission portion is in slide connection to the inner wall of the passage is sealed;
• the vibration energy consumption device comprises a linkage portion and an adjustment portion, one end of the linkage portion is connected to the other end of the transmission portion and the other end of the linkage portion is connected to the adjustment portion to link the upper top plate and the adjustment portion together;
• the adjustment portion follows the motion of the piston and is in slide connection to the piston to reduce the effective aperture of the first through hole when the upper top plate moves downward;
• and
• the first elastic member is used for enabling the upper top plate to return to its original position relative to the hydraulic cylinder, and the second elastic member is used for enabling the upper top plate to return to its original position relative to the piston, so that the vibration energy consumption device returns to its original position.