4results about How to "Prevent blow off" patented technology

The utility model provides a wafer oxidation rate test structure, which comprises an oxidation furnace, a plurality of bearing parts arranged at different temperature zones of the oxidation furnace, and wafer sample slices to be tested arranged on the bearing parts, the upper surfaces of the bearing parts are sunken to form sinking grooves, and the wafer sample slices to be tested are positioned in the sinking grooves. According to the wafer oxidation rate testing structure disclosed by the utility model, only one wafer can be cut into a plurality of sample slices so as to realize wafer oxidation rate testing at different temperature zones of an oxidation furnace, and the plurality of sample slices can be repeatedly used, so that the testing cost is greatly reduced.

The utility model relates to ploughing water and fertilizer conservation technical field, specifically disclose a kind of water and fertilizer conservation device in wind-water composite erosion area, including mulching film, the upper side of mulching film is provided with film pressing mechanism, film pressing mechanism includes the pressing plate that is attached with the surface of mulching film, the upper side of pressing plate is provided with filling cylinder, the inside of filling cylinder is filled with field soil, the upper side of filling cylinder outer wall is threadedly connected with closure cover, the lower portion of filling cylinder is provided with the ground rod passing through mulching film;The continuous protection surface formed by splicing multiple identical devices can significantly improve the stability of the mulching film, effectively prevent the mulching film from being blown off by strong winds, and further avoid the water retention function failure. At the same time, the mulching film continuously plays a water retention role. Through the continuous protection surface, the wind erosion and water erosion of the surface soil can be reduced, and the nutrient leaching loss caused by the wind erosion and water erosion can be reduced, thereby preventing the soil fertility from declining and ensuring the continuous exertion of the productivity of cultivated land.

The utility model discloses a kind of viscose traps for preventing and treating tea small green leafhoppers, including support frame, install the insect sticking frame of support frame, install the insect sticking plate and first side extension plate of insect sticking frame, install the collection box of support frame, install the fixing nail of insect sticking frame, install the ground-inserting fixing part of support frame, ground-inserting fixing part has multiple interval setting barbs, insect sticking frame has integrally arranged second side extension plate, insect sticking plate is installed in insect sticking frame by fixing nail, collection box is located below insect sticking frame, first side extension plate and second side extension plate are matched and set, insect sticking plate, first side extension plate, fixing nail, second side extension plate and ground-inserting fixing part are multiple and interval setting, first side extension plate and second side extension plate are all set in inclined shape;Insect sticking frame is provided with multiple interval setting insect sticking grooves, insect sticking plate is placed in insect sticking groove, the depth of insect sticking groove is greater than the thickness of insect sticking plate.

The utility model provides a commercial outdoor efficient gas fryer, which belongs to the technical field of fryers and comprises an oil cylinder and a fire tube arranged in the oil cylinder and used for heating oil, a chimney communicated with the fire tube is attached to the outer wall of the oil cylinder, and the chimney and the oil cylinder share the same wall surface; the fire tube can convey high-temperature flue gas generated during combustion into the chimney; the top of the chimney is designed to be open, a smoke discharging gap used for discharging smoke is formed in the opening of the chimney, and the size of the smoke discharging gap is smaller than that of the opening in the upper portion of the chimney so that the smoke discharging speed can be limited, high-temperature smoke can be retained in the chimney, and heat can be conducted to the oil cylinder through the common wall face. According to the utility model, the fire tube and the chimney are matched for use, so that high temperature of the fire tube and high-temperature flue gas synchronously heat oil, heat energy is fully utilized, and the oil heating efficiency is improved.