3results about How to "Restricted activities" patented technology

The application belongs to the hoisting technical field of concrete columns, in particular to a hoisting device for anti-leakage treatment of concrete outer walls, which comprises a rear support, a connecting frame is fixedly installed on the front side of one side of the rear support through bolts, an arc-shaped arch part is arranged in the middle of the upper surface of the connecting frame, a connecting groove rail A is arranged on the side of the connecting frame away from the arc-shaped arch part at the top, a supporting shaft is movably connected to the inner arc surface of the connecting groove rail A, and a front panel is connected to the end of the supporting shaft away from the rear support. When unexpected situations such as rope breakage and uncontrolled sliding of the supporting shaft occur, the locking and anti-falling assembly can quickly trigger automatic locking, cut off the falling trend from multiple links such as limiting the swing part from moving and preventing the supporting shaft from moving, effectively avoiding the falling risk of the front panel, workers and tools, and improving the safety protection capability of high-altitude operation of the concrete outer wall anti-leakage.

This utility model relates to the field of lifting equipment technology, specifically providing a concealed limit block hook, including a hook body, a locking block, and a limit block. The hook body has a mounting groove at its connecting end, and the locking block passes through and is rotatably connected to the mounting groove. A slot is formed on the side of the locking block facing the inside of the mounting groove. The limit block includes a connecting part and a locking part. The connecting part is rotatably connected to the mounting groove and fixedly connected to the locking part. One end of the locking part can engage with the slot, and when one end of the locking part is inside the slot, the other end is inside the mounting groove. When the locking part engages with the slot, it effectively restricts the movement of the locking block. At this time, the limit block is completely located within the mounting groove, making it less susceptible to impact from external objects, preventing displacement or damage to the limit block, thereby reducing the probability of accidental opening of the locking block and minimizing the risk of the lifted item falling off.

This utility model belongs to the technical field of stockings, specifically relating to a warm, bare-leg stocking, comprising a stocking body including a foot area, an ankle area, a leg area, and a knee area. The ankle area connects the foot area and the leg area, and the knee area is located on the leg area. The elastic modulus of the ankle area is greater than that of the foot area but less than that of the leg area. The elastic modulus of the knee area is less than that of both the foot and leg areas. By setting differentiated elastic moduli for different areas, the elastic deformation capacity of different areas can be adjusted, achieving a zoned elastic design and improving wearing comfort.