Recommended extension rod ball valve for the most

The utility model relates to a fluid control valve, which provides a valve stem extended ball valve with simple structure, convenient opening and closing control and can meet the requirements of different operating heights, including a valve body, a ball valve core, a valve stem and an opening device. The water inlet and water outlet are arranged on the axial part of the valve body The valve rod extended ball valve with convenient opening and closing operation and control and meeting the requirements of different operating heights, including the valve body, ball valve core, valve rod and opening device. The axial part of the valve body is provided with a water inlet and water outlet, the ball valve core can be rotatably installed between the water inlet and water outlet of the valve body, the upper side wall of the valve body extends a valve rod support, and one end of the valve rod passes through the valve rod support of the upper side wall of the valve body and is connected with the ball valve core, The valve rod is far away from the ball valve core system, and the free end where such a mismatch is detected between the detection parameters and the programming parameters is also provided with an extension rod, and the opening device is arranged on the free end of the extension rod

background technology

12. Deformation measurement accuracy: 1%; The ball valve is mainly used to cut off, distribute and change the flow direction of medium in the pipeline. It can be closed tightly only by rotating 90 degrees and a small rotating torque. It is generally used as a switch or shut-off valve, which is characterized by low fluid resistance and convenient switching. It is widely used in civil fields, petroleum, chemical and other industrial fields

common structures of ball valves include valve body, valve cover, ball valve core, valve rod and rotating handle. The rotating handle is set on the free end of the valve rod to open or close the ball valve core. Traditional ball valves restrict the center height of the valve door due to the production molding, appearance and assembly of the valve, which determines the installation position of the rotating handle. If there are special requirements for the installation pipeline and operation position, it cannot meet the installation requirements, Inconvenient opening and closing operation and control of ball valves often occur, which affects the use effect of ball valves

content of the utility model

in view of the above problems, the utility model proposes a valve rod lengthening ball valve with simple structure, convenient opening and closing operation and control, and can meet the requirements of different operating heights

to solve this technical problem, the utility model adopts the following scheme: a valve rod lengthening ball valve, including a valve body, a ball valve core, a valve rod and an opening device, and a water inlet and a water outlet are arranged on the axial part of the valve body, The ball valve core can be rotatably installed between the water inlet and water outlet of the valve body. A valve rod support extends from the upper side wall of the valve body. One end of the valve rod passes through the valve rod support on the upper side wall of the valve body and is connected with the ball valve core. The free end of the valve rod away from the ball valve core is also provided with an extension rod, and the opening device is arranged on the free end of the extension rod

what is further improved is that the valve rod and the extension rod are integrally formed, and the diameter of the extension rod is smaller than the diameter of the valve rod, and the two coaxial are arranged in a ladder shape. A 90 degree opening and closing limit device is set between the valve rod and the valve rod support on the upper side wall of the valve body. The 90 degree opening and closing limit device is: the valve, and since the market as a whole is always uncertain, the free end of the valve rod support on the upper side wall is provided with a 90 degree limit groove along the radial direction, and a convex column is extended on the outer wall of the circumference corresponding to the 90 degree limit groove of the valve rod and the valve rod support

the further improvement is that the valve rod protective sleeve is also sleeved on the valve rod support on the side wall of the valve body. At least one O-ring is arranged between the valve rod and the valve rod support on the upper side wall of the valve body

by adopting the above-mentioned technical scheme, the beneficial effects of the utility model are: the free end of the valve rod of the new ball valve is far away from the ball valve core, and an extension rod is also set on the free end of the extension rod. The extension rod can be set according to the actual needs, which can meet the needs of different operating heights. Its structure is simple, flexible and convenient to use, and it can still meet the installation requirements when there are special requirements for the installation pipeline and operation position, There will be no inconvenient phenomenon of opening and closing operation and control of ball valve; The further improvement is: a 90 degree opening and closing limit device is set between the valve rod and the valve rod support on the upper side wall of the valve body, so that the valve rod can only rotate in the 90 degree limit groove, so as to accurately and quickly realize the opening and closing of the ball valve, (4) sometimes the surface of the jaw is sprayed with steel grit, etc It is very convenient to use