Double-position adjustable self-keeping fast floating ball valve

Abstract

The invention relates to a double-position adjustable self-keeping fast floating ball valve. A valve base, a movable valve element, a valve element lever arm, a valve rod supporting rotating shaft, afloating ball lever, a magnetic force self-keeping mechanism, an upper limit floating ball, a lower limit floating barrel and an upper and lower limit adjusting floating barrel pull rod are included;when the water level is lowered to be lower than the lower limit floating barrel, liquid in the lower limit floating barrel changed into gravity, so that the total gravity borne on a lever is larger than the magnetic keeping attracting force, and the movable valve element connected to the lever is driven to perform fast valve opening; before the liquid level ascends to that the upper limit floating ball is submerged, the total gravity is still larger than buoyancy, and the valve open state is maintained; when the liquid level ascends to that the upper limit floating ball generates a rated buoyancy, the floating ball lever is driven to ascend, and ascends till a magnetic keeping mechanism generates an attracting force, the valve closing force is doubled, and the valve closing process is accelerated so that a water inflow valve can be fast closed; and in the valve closed state, before the liquid level descends to that the lower limit floating barrel is exposed, the valve closed state iskept due to the magnetic attracting force, and therefore double-position adjustable self-keeping fast valve opening and closing of the floating ball valve can be achieved, and the problems of shocking, quivering, abrasion and the like are avoided.

Description

technical field [0001] The invention relates to the technical field of valves, in particular to a two-position adjustable self-holding fast float valve. Background technique [0002] Float valve is a widely used liquid control valve, installed in liquid for automatic control of liquid level. Its main advantage is that it can realize the automatic control of the liquid level without relying on additional energy, and has a series of advantages of simplicity, convenience, and low cost; the principle of the float valve is that the hollow float in the container is made The buoyancy of the floating ball changes, causing the lever connected to the floating ball to move up and down to drive the valve spool connected to it; the buoyancy of the floating ball when the liquid level rises is greater than the medium pressure on the spool of the controlled valve and the total gravity of the floating ball system. is closed; when the liquid level drops, the buoyancy of the float decreases, ...

AI Technical Summary

Problems solved by technology

[0003] In the existing float valve technology, no matter whether the pilot valve is used or not, it is common to use a single float and one liquid level control point. They are all near the installation position of the lever type float valve, and the water inlet water level and the stop water inlet water level are very close, resulting in frequent start and stop of the remote control float ball valve; frequent start and stop of the valve will not only accelerate the impact and wear of the valve sealing surface and easily damage it, but also cause water supply problems. The pressure of the pipe network fluctuates violently, causing damage to the water supply pipe network; there are also occasions where well water is used to supply water to remote pools, in order to maintain the liquid level of the pool, the water supply equipment in front of the float valve needs to run for a long time, which wastes energy and causes accelerated wear of the equipment; For example, electric water boilers that use float valves to control water intake are widely used. After the water is boiled, the water is connected to the back, even if only half a cup of water is connected, the raw water will be added again, etc. Many places really need a device

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