Ball valve having easily assembling structure

• US 20040155218A1
• Filed: 02/06/2003
• Published: 08/12/2004
• Est. Priority Date: 02/06/2003
• Status: Abandoned Application

• Current Assignee: Shyh Chyuan Wang
• Original Assignee: Shyh Chyuan Wang
• Inventors: Wang, Shyh Chyuan
• Application Number:
  US10/361,428
• Publication Number:
  US 20040155218A1
• Time in Patent Office: Days
• US Class Current: 251/315.01
• CPC Class Codes: F16K 27/067 with spherical plugs
• CPC Class Codes: F16K 5/0647 Spindles or actuating means

Abstract

A ball valve includes a tubular element having an annular flange extended in the middle portion, and having a valve chamber formed in one end to receive two gaskets and a ball valve member, and having a barrel. A shank is rotatably received in the barrel and coupled to the ball valve member, to rotate the ball valve member relative to the tubular element. A duct includes a peripheral swelling extended from one end and engaged into the valve chamber of the tubular element, and secured to the tubular element with a welding member, for allowing the ball valve member and the gaskets to be easily assembled into the tubular element.

Claims

1. A ball valve comprising:

a tubular body including a lateral passage formed therein, and including a middle portion having an annular flange extended radially into said passage thereof, and including a first end having an inner thread formed therein, and a second end having a valve chamber formed therein and having a cylindrical wall formed therein, said tubular body including a barrel extended from said second end thereof,

a first gasket engaged into said valve chamber of said tubular body, and contacted with said annular flange of said tubular body,

a ball valve member rotatably received in said valve chamber of said tubular body, and including a bore formed therein to selectively align with said lateral passage of said tubular body, in order to control water flowing through said tubular body, said ball valve member including a first side engaged with said first gasket, and including a second side,

a shank rotatably received in said barrel of said tubular body and coupled to said ball valve member, to rotate said ball valve member relative to said tubular body when said shank is rotated relative to said barrel of said tubular body,

a handle secured to said shank to rotate said shank and thus to rotate said ball valve member relative to said tubular body,

a second gasket engaged into said valve chamber of said tubular body, and engaged with said second side of said bal valve member,

a duct including a bore formed therein to selectively communicate with said lateral passage of said tubular body and said bore of said ball valve member, and including a first end having a peripheral swelling extended therefrom and engaged into said valve chamber of said tubular body, and having a peripheral shoulder formed therein to receive said cylindrical wall of said second end of said tubular body, and

a welding member provided and engaged around said cylindrical wall of said tubular body and said duct, to solidly secure said duct to said tubular body.

2. The ball valve as claimed in claim 1, wherein said peripheral swelling of said duct includes an outer diameter smaller than that of said duct to form and define a peripheral shoulder on an outer peripheral portion thereof, and to receive said cylindrical wall of said tubular body.

3. The ball valve as claimed in claim 1, wherein said second gasket includes a peripheral groove formed therein and facing toward said duct, said duct includes a peripheral rib extended therefrom and engaged into said peripheral groove of said second gasket, to solidly engage with said second gasket, and to position said second gasket to said duct and said tubular body.