The function of the engine oil drain bolt is to drain the dirty engine oil when changing the engine oil. After draining the dirty oil, tighten the oil drain bolt and replace it with new oil to seal it. Oil drain valves are widely used in automobile engines and various machine tools. The oil drain valve used in automobile is called automobile oil drain valve for short. As shown in the figure, it is used to replace the oil drain bolt on the automobile oil pan. Using the suction force formed by vacuum equipment, the waste lubricating oil such as engine and gearbox is quickly pumped out and discharged into a sealed container, thus avoiding the pollution of waste engine oil to the atmosphere, soil and water quality. It is a patented product, which can completely suck out waste lubricating oil, which not only prevents the secondary pollution of new lubricating oil, but also prolongs the service life of the engine. (1) Reduce engine wear and protect the engine. After every 5000 kilometers, the engine will deteriorate, producing sludge and iron filings, which are substances that lead to the decrease of engine power and the increase of noise. The traditional oil drain is to remove the oil drain screw and then exile naturally. However, the sludge will have a certain viscosity and will not be cleaned up. There is still 250-400 ml of waste oil deposited in the inner corner of the oil pan, which cannot flow out by itself. It will be mixed with the newly added oil engine and re-enter the lubrication system of the engine, causing serious damage to the engine. Automobile oil drain valve adopts special oil pumping equipment and uses vacuum pressure to pump oil. Under the action of pressure, a strong vortex will be formed in the oil pan, which will lift the sludge and iron filings left in the engine and pump them away, thus reducing the wear of the engine and prolonging the service life of the engine. (2) No disassembly is required to avoid hair loss and tooth slipping; In the traditional oil drain method, the oil drain screw needs to be removed every time the oil is changed, and frequent disassembly will lead to screw hairiness and oil leakage. However, if the gear slips due to improper operation during disassembly, the oil pan needs to be replaced, and the replacement cost is about 500- 1000 yuan.
After installing the automobile oil drain valve, the oil can be directly pumped out through the quick connector of special equipment every time, and the oil drain bolt does not need to be disassembled, thus avoiding the phenomenon of oil leakage and oil leakage caused by repeated disassembly of the traditional oil drain bolt and greatly saving the cost of replacing the oil drain bolt and the oil pan. The product can be reused 10 times or more (customers are usually advised to replace it once every two years, 60,000 kilometers). (3) high efficiency, energy saving and environmental protection; In the traditional oil discharging method, it takes about 20 minutes to wait for the oil to cool down, and then at least 8 minutes to wait for the oil to drop naturally. Using special pumping equipment, the automobile oil drain valve can finish this work well within 45 seconds, thus saving the maintenance time of the automobile.