Abstract: A suction-type rack includes a suction cup, a cover, a tightening knob, and an article-holding frame. The article-holding frame is provided with a fastening portion which is fastened to a threaded rod of the suction cup by the tightening knob. The threaded rod of the suction cup is engaged with the tightening knob via a through hole of the cover. The fastening portion of the article-holding frame is located between the cover and the tightening knob such that a locating projection of the fastening portion is securely retained in a locating slot of the cover.

Abstract: A fixation seat comprises a profiling member, a suction cup, a spring, and an adjustment member. The profiling member has an annular groove and a center through hole. The suction cup has an annular protrusion and a threaded rod fastened therewith. The suction cup is joined with the profiling member such that the annular protrusion of the suction cup is received in the annular groove of the profiling member, and that the threaded rod is put through the center through hole of the profiling member. The spring is fitted over the threaded rod. The adjustment member has a threaded through hole by which the adjustment member is rotatably engaged with the threaded rod. As the adjustment member is turned on the threaded rod to compress the spring, the suction cup is caused by tension to attach firmly to wall.

Abstract: A ball valve comprises a tubular body in which a spherical body is rotatably disposed such that the spherical body is connected with a control rod via a connection portion of the tubular body. The spherical body is provided in the outer wall with a retaining slot. The control rod is provided at one end with a retaining body, which is retained in the retaining slot of the spherical body.

Abstract: A suction-type connection seat is designed to be attached to a surface or wall and is composed of a suction cup, a shield, a lower locating ring, a threaded bar, an upper locating ring, a connection rod, and a fastening ring. The connection rod is pivoted with the threaded bar and is provided with two arresting blocks which are jutted out of the threaded bar via the two cuts of the slot wall of the threaded bar. The lower locating ring has a plurality of protrusions, with each having a through hole for holding one end of a cord which is intended to locate further the connection seat. The arresting blocks of the connection rod serve to prevent the connection rod from turning in relation to the threaded bar.