Ball valve

[0012] Reference Figure 1 ~ Figure 4 It can be seen that the stainless steel ball valve of the present invention is composed of a valve seat 1, a valve core 2, a pin 3, a fixed nut 32, a hexagonal bolt 5 and an opening and closing handle 4. The valve seat 1 is a stainless steel cylindrical tube cavity. A round hole is provided on the central body wall, the valve core 2 is installed in the middle of the cavity of the valve seat 1, and there are wear-resistant washers 7, 8 on the left and right sides. A stainless steel washer 6 is also provided between the wear-resistant washer 7 and the hexagonal bolt 5. Then use the hexagonal bolt 5 to screw and squeeze the spool 11 to control the valve core 2 so that the valve core 2 cannot move left and right, and the groove 22 on the valve core 2 is aligned with the hole in the valve seat 1, and then the pin The pin 3 is inserted into the groove 22 on the valve core 2, and the pin 3 is controlled on the valve seat 1 with a fixed nut 32. A wear-resistant washer 33 is arranged between the fixed nut 32 and the edge of the pin to seal, and finally Align the rectangular square hole 43 on the opening and closing handle 4 with the upper end of the pin 3 and insert it, and fix it with the fixing nut 31. In this way, as long as people hold the handle 41 for horizontal movement, use the hook 42 and the groove 12 The rotation angle of the handle is controlled to open or close the patency of the lumen 21 in the valve core 2.