2results about How to "Increase the export area" patented technology

The invention discloses linkage replenishment type thin film raw material conveying equipment capable of achieving accurate metering, and belongs to the technical field of thin film raw material conveying equipment.The linkage replenishment type thin film raw material conveying equipment comprises a conveying line which is installed on a frame, extends in the preset direction and is used for bearing and conveying raw materials; the linkage conveying mechanism comprises a U-shaped plate arranged on the frame, lifting plates are installed on the two sides of the bottom end of the U-shaped plate through first springs, first pressing rollers are installed on the lifting plates in a rotating connection mode, and strip-shaped grooves are formed in one ends of the lifting plates in the height direction of the U-shaped plate; one end of the lifting plate is connected to the first sliding block through a first swing rod, and the other opposite end of the lifting plate is connected to the second sliding block through a second swing rod. The technical problems that when materials on a conveying line are too many or too few, a corresponding circuit sensing system and a mechanical mechanism are needed for designing a quantitative treatment mechanism, a matched mechanism is complex in design and inconvenient to maintain, and the design cost is increased can be solved.

The utility model discloses a kind of blade for centrifugal fan, centrifugal fan and fan, it is related to the field of centrifugal fan, wherein the blade main body of blade for centrifugal fan is located and is equipped with inverted arc surface structure on the side of leading edge suction surface, and inverted round structure is equipped on the side of leading edge pressure surface, blade main body upper part is set away from axis in the direction close to front disc, and lower part is gradually reduced in the direction close to rear disc towards axis distance;Centrifugal fan includes front disc, rear disc and above-mentioned blade, and the outer edge of front disc and rear disc is integrally formed with first reinforcing ring, and rear disc middle part is integrally formed with second reinforcing ring, and arch bridge structure is arranged between adjacent blade main body, and the area of arch bridge structure, upper arch height, arch bridge length and outlet distance ratio are limited;Fan includes above-mentioned centrifugal fan, and the application achieves the technical effects such as optimizing blade structure, enhancing fan strength, improving airflow flow performance.