Lift mechanism self-locking push rod

A lift mechanism self-locking push rod, comprising:

• a drive component, a transmission component, and a lift component, wherein a self-locking device is disposed between the drive component and the transmission component;
• a power input shaft of the transmission component is sleeved into a one-way bearing;
• a first locking piece and a second locking piece are disposed around the one-way bearing;
• the first locking piece is fixedly connected with the one-way bearing, and the second locking piece rotatably cooperates with the one-way bearing;
• the first locking piece is abutted against the second locking piece;
• a resistance is generated between abutting surfaces of the first locking piece and the second locking piece for the purpose of locking,
• wherein the self-locking device is further provided with a third locking piece;
• the first locking piece, the second locking piece and the third locking piece are coaxially disposed and arranged sequentially along a drive force transmission direction;
• the first, second and third locking pieces are respectively provided with a shaft hole for the power input shaft to pass through, and
• wherein the third locking piece is fixedly connected to the second locking piece, and the third locking piece is located at an end of the transmission component for receiving the power.

A lift mechanism self-locking push rod, comprising:

• a drive component, a transmission component, and a lift component, wherein a self-locking device is disposed between the drive component and the transmission component;
• a power input shaft of the transmission component is sleeved into a one-way bearing;
• a first locking piece and a second locking piece are disposed around the one-way bearing;
• the first locking piece is fixedly connected with the one-way bearing, and the second locking piece rotatably cooperates with the one-way bearing;
• the first locking piece is abutted against the second locking piece;
• a resistance is generated between abutting surfaces of the first locking piece and the second locking piece for the purpose of locking,
• wherein the self-locking device is further provided with a third locking piece;
• the first locking piece, the second locking piece and the third locking piece are coaxially disposed and arranged sequentially along a drive force transmission direction;
• the first, second and third locking pieces are respectively provided with a shaft hole for the power input shaft to pass through, and
• wherein when the power input shaft is operatively connected to transmit power to a gear speed-varying assembly, the power input shaft sequentially passes through the shaft holes of the first locking piece, the second locking piece and the third locking piece and then connects with a drive gear of the gear speed-varying assembly.