3results about How to "Control splash" patented technology

The invention relates to the technical field of road construction, and provides a road maintenance crack repairing and flattening device which comprises a base, an inclined tamping assembly is arranged in the middle of the bottom end of the base and comprises a fixing plate fixedly arranged at the bottom end of the base, and a first driving chain wheel and two first rotating shafts are arranged on one side of the fixing plate; first connecting rods are arranged on the outer surfaces of the first rotating shafts, second connecting rods are arranged at the bottom end of the base, a third rotating shaft is arranged at the lower ends of the two first connecting rods, a fourth rotating shaft is arranged at the lower ends of the two second connecting rods, and mounting plates are arranged at one ends of the third rotating shaft and the fourth rotating shaft; arc-shaped plates capable of moving in an opening and closing mode are symmetrically arranged at the lower end of the mounting plate. According to the crack repairing and flattening device for road maintenance, the V-shaped structure capable of being adjusted to be opened and closed is matched with the inclined tamping assembly, multidirectional compaction and rapid surface leveling of a crack repairing material are achieved, and the compactness of a repairing layer and the flatness of a road surface are improved.

The application relates to the technical field of plastic particle processing, and discloses a granulating device for processing foamed materials, which comprises a first support, a die head, a flow uniformizing plate and a pelletizing assembly, the die head is fixedly connected with the first support; the flow uniformizing plate is fixedly connected with the surface of the die head where extrusion holes are located, a plurality of first through holes are formed in the flow uniformizing plate, the first through holes correspond to the extrusion holes of the die head in a one-to-one manner, and the depths of the plurality of first through holes decrease in turn along the radial direction of the flow uniformizing plate; the pelletizing assembly is used for pelletizing the pull strips extruded by the flow uniformizing plate. The first through holes with different depths provide differentiated flow resistance for the melt flow rate at different positions, so that the melt flow rate at the outlets of the first through holes tends to be uniform, that is, the instantaneous extrusion amount tends to be equal, thereby improving the uniformity of the diameters of the pull strips, improving the problem of uneven thickness of the pull strips caused by the extrusion amount deviation of the edge holes and the middle holes, and improving the size consistency of the granulating particles and the product quality.

This invention discloses a spray gun and a cold spraying device incorporating the spray gun. The spray gun includes a spray gun body, a nozzle, a powder channel, a filter assembly, an air purifier, and a cooling structure. The nozzle is connected to one end of the spray gun body. The powder channel is disposed within the spray gun body, with one end connected to the nozzle and the other end having a powder inlet. The filter assembly is installed at the powder inlet. The air purifier is located at one end of the spray gun body and is sealed and connected to the powder channel. The cooling structure is integrated inside the spray gun body and fits snugly against the powder channel. The spray gun and cold spraying device of this invention effectively remove impurities from powder and air through the dual purification effects of the spray gun filter assembly and the air purifier. Simultaneously, the circulating cooling function of the cooling structure precisely controls the operating temperature of the spray gun, significantly extending the service life of the spray gun and equipment and ensuring long-term stable operation of the equipment.