Bidirectional ship lift by gravity balancing

A bidirectional ship lift by gravity balancing, comprising a ship lift body;

• wherein a first support is provided in a middle of the ship lift body;
• a second support is provided at a side of the first support;
• and a third support is provided at the other side of the first support;
• a downstream approach channel is provided at a bottom of a side of the second support and a bottom of a side of the third support, respectively;
• and an upstream approach channel is provided at a top of a side of the second support and a top of a side of the third support, respectively;
• a space between the second support and the first support forms a first shaft;
• a space between the first support and the third support forms a second shaft;
• a first ship-carrying chamber is provided in the first shaft;
• a second ship-carrying chamber is provided in the second shaft;
• and two transition ship chambers are respectively provided at a top of the first shaft and a top of the second shaft;
• a top of the third support is provided with a first outer safety pincer installation groove, in which a plurality of first outer safety pincers are provided;
• a bottom of each first outer safety pincer is provided with a first outer fixed pulley;
• and a top of each first outer safety pincer is provided with a second outer fixed pulley;
• a top of the second support is provided with a second outer safety pincer installation groove, in which a plurality of second outer safety pincers are provided;
• a bottom of each second outer safety pincer is provided with a sixth outer fixed pulley;
• and a top of each second outer safety pincer is provided with a fifth outer fixed pulley;
• a top of the first support is provided with a tension device installation groove;
• a plurality of first inner fixed pulleys are provided at a bottom of a side of the tension device installation groove;
• and a plurality of fifth inner fixed pulleys are provided at a bottom of the other side of the tension device installation groove;
• a bottom of each first inner fixed pulley is provided with a first inner safety pincer;
• and a bottom of each fifth inner fixed pulley is provided with a second inner safety pincer;
• a second inner fixed pulley is provided at the bottom of the side of the tension device installation groove;
• and a plurality of bidirectional speed limiters are provided at the bottom of the other side of the tension device installation groove;
• a top of the tension device installation groove is provided with an outer tension gear installation groove;
• a plurality of fourth outer fixed pulleys are provided at a bottom of a side of the outer tension gear installation groove;
• a plurality of third outer fixed pulleys are provided at a bottom of the other side of the outer tension gear installation groove;
• and a plurality of outer tension gears are provided in the outer tension gear installation groove;
• and
• an inner tension gear installation groove is provided at a bottom of the tension device installation groove;
• a plurality of third inner fixed pulleys are provided at a top of a side of the inner tension gear installation groove;
• a plurality of fourth inner fixed pulleys are provided at a top of the other side of the inner tension gear installation groove;
• and a plurality of inner tension gears are provided in the inner tension gear installation groove.