The invention belongs to the technical field of lifting appliances, and particularly relates to an anti-falling concrete empty box lifting appliance which comprises a rectangular frame, connecting plates are fixedly connected to the four corners of the rectangular frame correspondingly, clamping jaws are rotationally connected to the connecting plates, first lifting ropes are fixedly connected to the four corners of the rectangular frame correspondingly, and the first lifting ropes are rotationally connected to the clamping jaws. The upper ends of the first lifting ropes are jointly and fixedly connected with a first connecting ring, and the inner walls of the two sides of the rectangular frame are symmetrically and fixedly connected with guide plates. The lifting appliance is placed into the concrete empty box through a crane, the first lifting rope and the second lifting rope are loosened, the movable pipe and the cross rod move downwards under the action of gravity, the clamping jaws rotate towards the outer side to abut against the inner wall of the concrete empty box, at the moment, the baffles stretch out to limit the movable pipe and prevent the movable pipe from moving upwards, stability of connection between the clamping jaws and concrete is guaranteed, and falling off is prevented; subsequently, the cylinder is lifted firstly to extrude the baffle to move back, the moving pipe can be pulled to move upwards to enable the clamping jaw to rotate to be separated from the concrete empty box, and lifting appliance separation is achieved.
本发明属于吊具技术领域,尤其涉及一种防脱落的混凝土空箱吊具,包括矩形框,所述矩形框的四个边角处均固定连接有连接板,所述连接板上转动连接有夹爪,所述矩形框的四个边角处均固定连接有吊绳一,多个所述吊绳一的上端固共同固定连接有连接环一,所述矩形框的两侧内壁对称固定连接有导向板。本发明通过吊机将吊具放入混凝土空箱内,松开吊绳一和吊绳二,移动管和横杆在重力作用下下移,使夹爪往外侧转动与混凝土空箱内壁抵紧,此时挡板伸出完成移动管的限位,阻止移动管上移,保证了夹爪与混凝土连接的稳定,防止脱落,后续通过先吊起圆柱挤压挡板回移,即可拉动移动管上移使夹爪转动脱离混凝土空箱,实现吊具脱离。
Anti-falling concrete empty box lifting appliance
一种防脱落的混凝土空箱吊具
01.08.2023
Patent
Elektronische Ressource
Chinesisch
IPC: | B66C Krane , CRANES |
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