Cylinder sleeve provided with annular sinking table sealing surface

The utility model discloses a cylinder sleeve provided with an annular sinking table sealing surface. The cylinder sleeve provided with the annular sinking table sealing surface comprises a cylinder sleeve body with a surface undergoing overall phosphate treatment. A supporting shoulder, an upper waistband, a water wall sleeve, a lower waistband, and a skirt portion are provided on a cylinder sleeve outer wall between an upper end surface and a lower end surface of the cylinder sleeve body. A water sealing ring groove is provided between the water wall sleeve and the lower waistband. The upper end surface of the cylinder sleeve body is provided with the annular sinking table sealing surface. A sealing surface loop groove is provided on the annular sinking table sealing surface. Platform reticulated mottles after laser quenching are uniformly distributed on an inner surface of the cylinder sleeve body. The cylinder sleeve of the utility model has the characteristics of high load, low emission, wear resistance,