4results about How to "Fast forward" patented technology

The utility model relates to the technical field of mixing pile construction, disclose a kind of mixing pile mud splashing prevention device including shielding subassembly and base;Shielding subassembly includes multiple shielding monomers, rotationally connected between adjacent shielding monomers, the shielding monomer for being connected to mixing pile drill rod in multiple shielding monomers one end, the shielding monomer connected to base in multiple shielding monomers other end.The utility model shielding monomer rotationally connected and two ends are connected drill rod and base, can closely adhere drill rod lifting track, angle is flexibly adjusted to reduce mud overflow, improve mud efficiency;Modular structure adapts to different drill rod specifications and construction conditions, solve the problem of traditional mudguard adaptation difference;Portable design and dismounting are convenient, can save construction manpower time cost, improve construction efficiency.

The utility model provides a mounting frame for a roller shutter type air filter, which relates to the technical field of roller shutter type air filters and comprises a mounting frame, rollers are mounted at the bottom end of the mounting frame, a winding roller is mounted in the middle of the bottom end in the mounting frame, and a mounting cavity is mounted at the top end of the mounting frame. A traction mechanism is arranged on the inner side of the mounting frame; the traction mechanism is arranged on the inner side of the mounting frame, and a traction frame, an electric telescopic rod, a clamping plate, a first servo motor, a first bevel gear, a second bevel gear, a threaded rod, a threaded sleeve, a limiting rod and a limiting sleeve of the traction mechanism are matched with one another, so that filter cloth can be clamped and fixed; and then the filter cloth is automatically dragged, so that the filter cloth is more convenient and quicker to replace, the labor intensity of workers is reduced, and the practicability of the frame in use is greatly improved.

The utility model discloses an automatic folding forming device of a flexible packaging container, which comprises a frame body, a driving motor connected with the frame body, a piston frame connected with the driving motor, a piston rod inserted in the piston frame, an external negative pressure vacuum device connected with the piston rod, a piston head connected with the piston rod, and a suction hole formed in the piston head. An external negative pressure vacuum device is communicated with the piston head through a piston rod, so that the suction hole has an adsorption effect, and the frame body is connected with a mold which is connected with a forming cup body. The device has the beneficial effects that the production efficiency is greatly improved; stable product quality is guaranteed; the production cost is obviously reduced; operation is convenient, and adaptability is high.

This invention discloses a flat-top gantry crane, relating to the field of crane technology. It includes a tower body, a gantry frame mounted at the lower end of the tower body, a slewing support mounted at the upper end of the tower body, a machine platform mounted at the upper end of the slewing support, a machine room mounted at the upper end of the machine platform, a boom mounted at the front end of the machine platform, a luffing device installed inside the boom, a second luffing wire rope and a first luffing wire rope mounted on the left and right sides of the luffing device respectively, a luffing trolley mounted at one end of the second luffing wire rope, the luffing trolley being slidably connected to the lower end of the boom, and one end of the first luffing wire rope being connected to the luffing trolley. A hook is mounted at the lower end of the luffing trolley via a hoisting wire rope. This invention, through a series of structural features, significantly reduces the luffing resistance of horizontal traction compared to a boom-tilting type, reduces the motor power of the luffing mechanism, and increases the luffing speed, thereby greatly improving work efficiency.