Control handle assembly for a fluid valve structure

• US 10,302,206 B2
• Filed: 07/16/2015
• Issued: 05/28/2019
• Est. Priority Date: 07/16/2015
• Status: Active Grant

• Current Assignee: Y.S. Valve Manufacturing Co., Ltd.
• Original Assignee: Y.S. Valve Manufacturing Co., Ltd.
• Inventors: Wang, Chi-Yuan
• Primary Examiner(s): Hicks, Angelisa L.
• Application Number:
  US14/800,939
• Publication Number:
  US 20170016545A1
• Time in Patent Office: 1,412 Days
• Field of Search: 137553, 137556, 251 89, 251208, 251297, 25131501, 25131507
• CPC Class Codes: F16K 11/0873 the plug being only rotatable around one spindle
• CPC Class Codes: F16K 27/067 with spherical plugs
• CPC Class Codes: F16K 31/602 Pivoting levers, e.g. single-sided F16K31/605 takes precedence
• CPC Class Codes: F16K 35/04 yieldingly resisting the actuation
• CPC Class Codes: F16K 37/0008 Mechanical means F16K37/0075 takes precedence
• CPC Class Codes: F16K 37/0058 Optical means, e.g. light transmission, observation ports F16K37/0075 takes precedence

Abstract

A fluid valve structure capable of outputting constant flow and constant pressure is provided. A control handle is adapted to control turning of a ball valve. The ball valve is formed with first, second and third openings. The openings are arranged at 90 degrees each other. The diameters of the first, second and third openings can be set according to the required flow and pressure. The fluid passes the first, second and third openings through an annular guide groove and guide holes of a water inflow connector, enabling the fluid gathered to the small diameter pipe portion to output constant flow and constant pressure. The user can observe the state of the fluid through glass windows provided on the small diameter pipe portion. The control handle controls the turning of the ball valve for the openings to be located in TEST, OFF, and DRAIN state, respectively.

Claims

1. A control handle assembly for a fluid valve structure comprising:

a first indication member extending in a first radial direction, a second indication member extending in a second radial direction opposite the first radial direction, and a third indication member extending in an axial direction;

a transmission rod and a ball valve;

a control handle fitted and positioned on the transmission rod so as to turn the ball valve wherein the first, second and third indication members correspond to first, second, and third openings of the ball valve respectively; and

a positioning assembly including an outer threaded pipe, a rolling ball, and a compression spring inserted in the third indication member, a first end of the compression spring being pressed against an inside of the third indication member, the rolling ball being disposed inside the third indication member to bear against an opposite second end of the compression spring, the outer threaded pipe being screwed inside the third indication member to secure the rolling ball and the compression spring inside the outer threaded pipe, one end of the outer threaded pipe, away from the third indication member, being formed with an inner flange adapted to hold against the rolling ball such that the rolling ball is retained and such that a portion of the rolling ball is exposed;

wherein the control handle includes a handle section and a holding section extending downward from a front end of the handle section, one end of the holding section, close to the handle section, being formed with a first indication notch on a first side and a second indication notch on an opposite second side of the holding section respectively, one end of the handle section, close to the holding section, being formed with a first holding hole, the transmission rod being inserted through the first holding hole and locked by a fixing nut securing the holding section of the control handle on the transmission rod, enabling the control handle to turn the transmission rod, the holding section being formed with an open second holding hole movably engaging the exposed portion of the rolling ball such that, throughout movement of the control handle, the rolling ball only contacts the control handle when the holding section of the control handle is adjacent the third indication member.