2results about How to "Improve lifting safety" patented technology

The utility model discloses a mechanical clamp for marble processing relates to marble hoist clamp technical field, including hoist clamp subassembly, locking subassembly, locking subassembly is used for the clamping state of hoist clamp subassembly is located. The utility model discloses a locking subassembly is set up, when hoist clamp subassembly is clamped to marble board, hoists, ratchet wheel card seat can realize the one -way locking of the inclined ratchet plate, so, when marble board is shifted to the specified position and is slowly put down, marble board bottom and object contact, and the lifting equipment's lifting rope is still in relaxation, and extrusion seat keeps with the lifting seat and keeps height relative invariable under the mutual locking of the inclined ratchet plate, ratchet wheel card seat, namely, moving the clamping plate and fixed clamping plate keep the steady clamping state of marble board at this moment, need to release the clamping of hoist clamp subassembly to marble board, just need to manually pull the pull rope and can, effectively improve marble board hoisting safety.

The application belongs to the technical field of building construction, and particularly relates to a precast beam hoisting and transporting device, which comprises a hoisting beam, a sling, a first half sliding sleeve, a second half sliding sleeve and a reset spring. Before the precast beam is hoisted and transported, the reset spring at both ends of the inner cavity is pushed to make the first half sliding sleeve and the second half sliding sleeve be at the central position of the inner cavity, so that the length of both ends of the sling is always consistent. During the hoisting and transporting of the precast beam, when the precast beam is slightly inclined, the sling drives the first half sliding sleeve and the second half sliding sleeve to slide along the inner cavity to the side, the reset spring at the side is compressed, and the reset spring at the other side is stretched. The elastic force generated by the reset springs at both sides can make the first half sliding sleeve and the second half sliding sleeve reset to the central position of the inner cavity, drive the height of both ends of the sling to return to the horizontal state, thereby adjusting and restoring the precast beam to the horizontal state, and then the stability and safety of the hoisting and transporting of the precast beam are improved.