Low-torque stop valve

According to the low-torque stop valve, the valve body is directly connected with the packing gland through the packing bolt, the U-shaped grooves are formed in the two sides of the lower end of the support, and rotation prevention of the support is achieved through matching of the U-shaped grooves and the packing bolt. The valve rod is divided into an upper valve rod body and a lower valve rod body, the upper valve rod body and the valve rod nut complete lifting motion of the upper valve rod body through thread transmission, the head of the upper valve rod body and the head of the lower valve rod body are connected with the connecting block in a hook mode, the opening and closing functions of the stop valve are finally achieved, the valve rod torque of the stop valve can be effectively reduced, and the valve is easier to open and close. The product performance is improved. 本实用新型是：一种低力矩型截止阀，阀体与填料压盖通过填料螺栓直接连接，支架下端两侧开有U型槽，通过与填料螺栓配合，实现支架的防转。阀杆分为上阀杆与下阀杆两部分，上阀杆与阀杆螺母通过螺纹传动完成上阀杆的升降运动，上阀杆与下阀杆头部采用挂钩形式与连接块连接，最终实现截止阀的启闭