Mechanical floating ball water filling valve

Abstract

The invention discloses a mechanical floating ball water filling valve which comprises a floating ball and a lever. The floating ball is installed at the front end of the lever. The rear portion of the lever is fixedly connected into an upper valve body in a rotating mode. A lower valve body is assembled to the lower portion of the upper valve body. An inner valve is assembled into the lower valve body. A spring base is arranged in the inner valve and provided with a locating column. The locating column is sleeved with a large spring. The upper end and the lower end of the large spring are connected to the lower end of the upper valve body and the bottom of the spring base respectively. A needle valve is installed in the upper valve body. The upper end of the needle valve makes contact with the tail of the lever, and the lower end of the needle valve is in butt joint with a water passing hole of the upper valve body. A center damping hole is formed in the bottom of the inner valve. A water inlet hole is formed in the lower end of the lower valve body. A water outlet hole is formed in the side face of the lower valve body. The pressure affected face and the axial stroke of the needle valve are small, the diameter of the floating ball and the arm length of the lever are relatively small, the water level difference for opening and closing the valve through the floating ball is small, and control precision is high; compared with the prior art, the pressure withstanding value and the water level precision are controlled substantially, and the water filling valve is suitable for a high-pressure environment.

Description

Technical field [0001] The invention relates to the technical field of water supply control devices, in particular to a floating ball water supply valve. Background technique [0002] The existing mechanical floating ball filling valve is usually a structure in which a floating ball and a connecting rod are connected with a right-angle lever. The right-angle lever is pressed on the outer end of the ejector rod, and the pilot diaphragm sleeved by the ejector rod is in contact with the pressure relief target. . The force generated by the buoyancy ball lever of the float valve only balances the pressure of the pressure relief nozzle of the pilot valve, and the pressure relief nozzle is made of anti-fouling fluoroplastic material and is embedded in the center of the pilot valve body, directly with the control body. Connected. The pilot float valve constructed in this way uses a small float, a high shut-off capacity, and a compact overall structure, which can reduce costs and reduce...

AI Technical Summary

Problems solved by technology

The main defect is that this type of valve is restricted by the design structure and raw material performance, and is not suitable for working in a high-pressure environment

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