Abstract: A connection structure of a valve assembly contains: a body, a connecting pipe, and a C-shaped retainer. The body includes an accommodation chamber for receiving a ball valve, and a wrench is configured to turn on/off the ball valve. The body further includes a threaded tube, a water-supply coupling section, a fitting portion, a water stop ring, an engagement rib, and two locating protrusions. The connecting pipe is connected with the water-supply coupling section to form the valve assembly and includes a joining section, a groove, and a defining orifice configured to engage with the fitting portion of the water-supply coupling section of the body. The C-shaped retainer includes two retaining wings for engaging with the joining section of the connecting pipe and the engagement rib of the body, and the C-shaped retainer includes a C-shaped bridge configured to connect the two retaining wings.

Abstract: A ball valve device contains: a body and a hollow threaded tube. The body includes an operation handle, a chamber opened/closed by the operation handle, an outlet formed on a first end of the body and communicating with the chamber, a connection portion formed on a second end of the body and communicating with the chamber, at least one protrusion extending outward from the connection portion, and a connector connecting and communicating with the connection portion. The threaded tube includes a fitting portion formed on a first end of the threaded tube and fitted on the connection portion, a threaded section arranged on a second end of the threaded tube, and at least one recess corresponding to the at least one protrusion, wherein the connector is fitted in the threaded tube, and the at least one protrusion retains in the at least one recess of the body.