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FLUID VALVE STRUCTURE CAPABLE OF OUTPUTTING CONSTANT FLOW AND CONSTANT PRESSURE

  • US 20170016545A1
  • Filed: 07/16/2015
  • Published: 01/19/2017
  • Est. Priority Date: 07/16/2015
  • Status: Active Grant
First Claim
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1. A fluid valve structure capable of outputting constant flow and constant pressure, comprising:

  • a connector main body including a large diameter pipe portion and a small diameter pipe portion, the large diameter pipe portion being in communication with the small diameter pipe portion, one end of the large diameter pipe portion, opposite to the small diameter pipe portion, being formed with inner threads, the large diameter pipe portion having a first inner trough located in front of the small diameter pipe portion for a first ball gasket to be inserted and positioned therein, the large diameter pipe portion including a connecting pipe extending upward, the connecting pipe being formed with a first indication member extending in a first radial direction of the large diameter pipe portion, a second indication member extending in a second radial direction of the large diameter pipe portion, and a third indication member extending in an axial direction of the large diameter pipe portion and facing toward the small diameter pipe portion, the second radial direction being opposite to the first radial direction;

    a transmission rod having a drive section and an engaging section connected with the drive section, a plurality of annular grooves being provided above the engaging section for receiving a plurality of O-shaped rings, the drive section being rotatably inserted into the connecting pipe and engaged with an engaging slot of a ball valve disposed inside the large diameter pipe portion, the engaging section being exposed out of the connecting pipe, a bottom end of the engaging section being fitted with a plurality of water stop gaskets for a control handle to be fitted and positioned on the transmission rod so as to turn the ball valve, characterized by;

    the first, second and third indication members corresponding to first, second and third openings of the ball valve respectively, the diameters of the first, second and third openings being set according to the demand of required flow and pressure for fluid passing through an annular guide groove and guide holes of a water inflow connector and flowing to the small diameter pipe portion through the first, second and third openings in different diameters to be controlled at a preset value so as to output constant flow and constant pressure;

    a first visual pipe extending from the small diameter pipe portion in the first radial direction and communicating with the small diameter pipe portion, a first visual pipe being screwedly provided with a first visual lens assembly therein;

    a second visual pipe extending from the small diameter pipe portion in the second radial direction and communicating with the small diameter pipe portion, the second visual pipe being screwedly provided with a second visual lens assembly therein;

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

    a water inflow connector having an outer threaded section, an inner shoulder portion, an outer raised ring, and a connecting section, two ends of the outer raised ring being communicated with the outer threaded section and the connecting section respectively, a second inner trough being formed in the inner shoulder portion for a second ball gasket to be inserted and positioned therein, the inner shoulder portion being disposed inside the outer threaded section or extending from an inner circumferential edge of the outer raised ring, an annular guide groove being formed between the inner shoulder portion and the outer raised ring, the outer threaded section of the water inflow connector being screwed to the inner threads of the large diameter pipe portion, the outer threaded section being axially formed with the guide holes, the guide holes being communication with the annular guide groove, the outer raised ring leaning against one end of the large diameter pipe portion, opposite to the small diameter pipe portion;

    a ball valve assembly including the first ball gasket, the second ball gasket, and the ball valve, the first ball gasket being disposed in the large diameter pipe portion and positioned at the junction of the large diameter pipe portion and the small diameter pipe portion, the second ball gasket being disposed in the outer threaded section of the water inflow connector and positioned in the inner shoulder portion, the ball valve being rotatably disposed in the large diameter pipe portion and sandwiched between the first ball gasket and the second ball gasket, the ball valve having a main body, the engaging slot, the first opening, the second opening, and the third opening, the engaging slot being disposed atop the main body and located under the connecting pipe, an axial direction of the engaging slot being parallel to the axial direction of the large diameter pipe portion of the connector main body, the first opening being formed on the main body in the first radial direction, the second opening being formed on the main body in the second radial direction, the third opening being formed on the main body in the direction of the second ball gasket, the diameter of the first opening being about equal to that of the third opening, the diameter of the second opening being less than that of the first opening as well as the third opening; and

    a control handle including a handle section and a holding section, the 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 in the first axial direction and a second indication notch in the second axial direction, one end of the handle section, close to the holding section, being formed with a first holding hole, the engaging section of the transmission rod being inserted through the first holding hole and locked by a fixing nut, the holding section of the control handle being secured on the transmission rod, enabling the control handle to bring the transmission rod to turn, the holding section being formed with a second holding hole for an exposed portion of the rolling ball to be movably engaged in the second holding hole.

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