57results about How to "Easy to install manually" patented technology

The invention discloses a precise lifting mechanism for installation of a large valve. The precise lifting mechanism for installation of the large valve comprises a bottom frame. The left side and theright side of a top plate of the bottom frame are fixedly provided with vertical supporting plates. The inner side walls of the top ends of the two vertical supporting plates are fixedly provided with transverse plates. Two vertical threaded rods are located on the left side and the right side of the top plate of the bottom frame. The bottom ends of the vertical threaded rods are hinged to the top plate of the bottom frame. The top ends of the vertical threaded rods are hinged to the transverse plates. The vertical threaded rods are connected with lifting blocks in a screwed manner. The bottom face of a main bottom plate leans against the top faces of the two lifting blocks in a pressing manner. The left side and the right side of the main bottom plate are fixedly provided with vertical guide columns. According to the precise lifting mechanism for installation of the large valve, the valve can be put in a semi-circular groove, a transverse rotating main shaft is manually rotated, lifting of the lifting blocks is achieved, the height position adjustment of the valve can be achieved, it is guaranteed that the height position of the valve adapts to the installation height position, manual installing is facilitated, long-time manual lifting is not needed, and the manual labor amount is greatly reduced.

The invention relates to the technical field of learning tools, and especially relates to a backing board having a homework data storage function for students. Thus, the purpose of conveniently storing homework data can be realized. The backing board includes a backing board body; the top of the backing board body is movably connected to a connecting seat; the two sides on the top of the connecting seat are fixedly connected to thread bushings; the internals of the thread bushings are in threaded connection with threaded rods; and the bottom ends of the threaded rods pass through the bottom ofthe connecting seat and are in threaded connection with the top of the backing board body. Through limit devices at the internals of first placing grooves, clamping pieces can be fixed through connection boards connected to one ends of reset springs, and clamping can be performed on storage hard disks through the upper and lower clamping pieces at the internals of the first placing grooves, so that the positions of the storage hard disks can be limited; and data storage can be conveniently performed through data connectors on one ends of the storage hard disks, and the storage hard disks canbe conveniently and manually installed and dismounted through the elasticity of the reset springs, so that the purpose of convenient maintenance and replacing can be achieved.

The invention relates to a winding forming die for a cylinder and belongs to the technical field of mechanical forming. The winding forming die is composed of a shell, a mandrel, supporting mechanisms and an end socket positioning device. The multiple supporting mechanisms are parallel, are of the same structure and comprise inner rings, outer rings and supporting rods. The inner rings penetrate in the mandrel and are fixed through dowels. The supporting rods are distributed between the inner rings and the outer rings in a radial manner, and the outer rings are fixed to the shell. The shell is fixed through the end socket positioning device. The winding forming die is applied to machine forming and has the beneficial effects of being convenient to mount and demount, reliable in connection, high in rigidity, small in deformation, low in weight and cost and the like.