High discharge volume valve capable of accurately positioning

Abstract

The invention discloses a high discharge volume valve capable of accurately positioning. The valve is characterized in that a wrench, a flow guiding cover, a valve plate, a valve seat, a shell and a valve rod are included; a valve body is a ball with a through hole, the valve rod is connected with the ball through the wrench, the wrench is connected with the valve plate through the flow guiding cover, the valve plate is fixed to a valve plate pad through a nut, the wrench is in threaded connection with the flow guiding cover, the flow guiding cover is arranged on the valve seat, the upper portion of the valve rod protrudes out of the shell and is fixedly provided with two positioning clamping protrusions, the shell is provided with stopping protrusions which are matched with the positioning clamping protrusions and located between two limit protrusions. The valve is simple in structure, convenient and practical, can meet the requirement of quickly discharging sewage with impurities, and can improve the discharge effect, reduce the maintenance cost and accurately position the opened or closed state of the valve.

Description

technical field [0001] The invention belongs to the technical field of planting nutrient solution, and in particular relates to a high displacement valve with accurate positioning. Background technique [0002] At present, the valves circulating on the market, especially the ball valves, are equipped with special operating handles to control the opening or sealing of the valves. The operating handles are equipped with positioning claws that limit the rotation angle, relying on the positioning claws on the operating handles. Guarantee the angle and direction of rotation. Due to the high temperature of the water in the pipe (about 120°C) and the impurities in the water, when the water is discharged at high temperature, it is easy to cause blockage of the ordinary spherical valve and hardening of the lining material, affecting the discharge effect and high maintenance costs. Large-scale valves need to be equipped with a special large-scale operating handle. Due to the heavy we...

AI Technical Summary

Problems solved by technology

Due to the high temperature of the water in the pipe (about 120°C) and impurities in the water, when the water is discharged at high temperature, it is easy to cause blockage of the ordinary spherical valve and hardening of the lining material, which affects the discharge effect and high maintenance costs

Large-scale valves need to be equipped with a special large-scale operating handle. Due to the heavy weight and bulk of the operating handle itself, there is a defect that it is inconvenient to pack, carry and transport. Usually, the operating handle and the valve stem are designed separately. This separate design is convenient for operating the handle. Manufactured and packaged separately, but there is a defect that the valve cannot be opened and closed in time when the special operating handle is lost or damaged during the use of the valve, and even if it can be opened and closed, the closed state of the valve cannot be accurately located