161results about How to "Easy height adjustment" patented technology

This utility model relates to the field of packaging bag winding technology and discloses a packaging bag roll winding device, which solves the problems of unevenness and wrinkles that easily occur after packaging bags are wound. It includes a base, with a first upright plate fixedly connected to the top of the base, and a second upright plate movably mounted on the top of the base. The second upright plate is parallel to the first upright plate. A winding roller is positioned between the first and second upright plates, and a pressing mechanism is positioned above the winding roller. The pressing mechanism includes a mounting plate fixed to the outside of the second upright plate, a U-shaped rod fixedly connected to the top of the mounting plate, an L-shaped plate movably sleeved on the outside of the U-shaped rod, a top rod fixedly connected to the top of the second L-shaped plate, a top plate movably sleeved on the outside of the top rod, and a spring fixedly connected between the top plate and the second L-shaped plate, the spring being sleeved on the outside of the top rod. This utility model facilitates constant contact between the pressure roller and the packaging bag, thereby facilitating the pressing of the packaging bag and preventing it from loosening.

The utility model discloses a sound insulation board for municipal construction, which comprises two sound insulation board pieces, a supporting seat is arranged between the two sound insulation board pieces, two connecting grooves are arranged on the outer surface of the supporting seat, one ends, close to each other, of the two sound insulation board pieces respectively extend into the two connecting grooves, and the other ends of the two sound insulation board pieces respectively extend into the two connecting grooves. A mounting bottom plate is arranged below the supporting seat, a bearing ring is fixedly embedded in the upper surface of the mounting bottom plate, and the inner ring of the bearing ring is connected with a connecting shaft. According to the sound insulation plate for municipal construction, through arrangement of the bearing ring and the connecting shaft, the mounting bottom plate can be connected with the bottom of the supporting seat, the supporting seat can rotate above the mounting bottom plate, the angle of the sound insulation plate can be flexibly adjusted, and compared with a traditional mode that a worm, a worm gear and other assemblies are used for angle adjustment, the sound insulation plate is simpler and faster; and through the connecting grooves formed in the supporting seats, the sound insulation plates can slide up and down in the supporting seats, the height between the adjacent sound insulation plates can be easily adjusted, and connection and installation are facilitated.

本实用新型公开了一种能够实现横杆的位置高度调节，便于实现自动化操作的液压可调节升降式舞蹈把杆。该液压可调节升降式舞蹈把杆包括舞蹈把杆；所述舞蹈把杆包括安装支座、连接杆以及横杆；所述连接杆与安装支座之间设置有伸缩缸；所述伸缩缸一端与安装支座铰接，另一端与连接杆铰接；还包括控制伸缩缸伸缩的液压控制系统；所述液压控制系统包括液压泵、溢流阀、三位四通换向阀、油箱、滤油器以及节流阀。采用该液压可调节升降式舞蹈把杆包括舞蹈把杆能够实现把杆高度的精确调节，满足不同身高舞者的需求；并且调节过程中，操作简单，调节平稳，调节精准。