Abstract: A splash guard for a snorkel tube has an extension pipe, a pivot member pivotally mounted on the extension pipe, a space surrounded by the extension pipe and the pivot member, a float member pivotally mounted on the pivot member and located in the space, a closure member disposed on the pivot member, and a cover disposed on the extension pipe. The extension pipe has a first aperture and a second aperture in opposition. The pivot member has two pivot arms and a support portion. A pivoting limit is formed in a surface of the support portion facing the extension pipe which is selectively abutted by the float member. The closure member selectively seals the first aperture. The cover has a socket selectively engaged by the projection. The present invention can prevent inadequate sealing and has the advantages of light weight and small volume.

Abstract: A snorkel connector has a base tube, a mounting tube and a mouthpiece. The base tube has two outer side walls and two side recesses. The side recesses are respectively formed in the outer side walls and each have a bottom and a bottom recess. The bottom recesses are formed respectively in the bottoms of the side recesses. The mounting tube is removably mounted on the base tube and has two wings and a supporting part. The wings are formed on the mounting tube, are held in the side recesses of the base tube and have protrusions. The protrusions are formed on the wings of the mounting tube and engage the bottom recesses of the base tube to hold the mounting tuber onto the base tube. The mouthpiece is mounted on the mounting tube and allows the support part of the mounting tube to extend into.

Abstract: Protective lenses with a flexible gasket assembly has a main lens, at least one peripheral lens, at least one hinge, a main lens gasket and at least one peripheral lens frame. Each hinge bonds to the main lens and one of the at least one peripheral lens to connect the main lens and the peripheral lens and provides a resilient cushion between the main lens and the peripheral lens to keep the lenses from breaking. The main lens gasket and the peripheral lens gasket are able to compensate for inaccuracies in the lenses prevent sharp edges on the lenses from injuring people.

Abstract: A valve for a snorkel has a body, a floating cylinder and a seat. The body has a floating cylinder chamber. The floating cylinder chamber is formed inside the body and has a top opening, a bottom and a tracking extension. The tracking extension is formed at the bottom of the floating chamber. The floating cylinder is slidably mounted inside the floating cylinder chamber and has a bottom and a channel. The channel is formed at bottom of the floating cylinder and receives the tracking extension of the floating cylinder chamber to guide the floating cylinder toward to certain direction. The seat is mounted at the top opening of the floating cylinder chamber and has a cushion. The cushion is bellows-shaped and is mounted on the seat. When the cushion abuts against the floating cylinder, the cushion is adjustable at angle to seal tightly the floating cylinder chamber.

Abstract: A diving mask includes a mask portion and a pair of side buckles respectively extending rearwards from the left and right sides of the mask portion. A structure that permits an easy adjustment in the relative positions between the mask portion and the pair of the side buckles is adopted in the diving mask. Two coupling blocks made of flexible material are respectively defined between two lateral sides of the mask portion and the pair of the side buckles. The coupling blocks permit the pair of side buckles to move upwards/downwards or leftwards/rightwards relative to the mask portion.

Abstract: A mask strap adjuster attaches a strap with right triangular ribs to a mask, allows the strap to be tightened by pulling the strap and comprises a base, a cover and a connector. The base has two corresponding moveable caps. Each cap has two nubs. The cover is mounted on the base and has a pawl and two nubs. The pawl engages the ribs on the strap to allow the strap to be tightened by simply pulling the strap. The nubs of the cover are pressed selectively by the nubs on the caps and press the cover away from the base and the pawl away from the ribs to loosen the strap. The cover and the base can be short.

Abstract: A waterproof device for a snorkel is mounted on a distal end of a breather pipe and has a lower shell, a ring, an upper tube with an open end, an elastic collar, and an upper shell. A lower pipe is mounted to a lower end of the lower shell and the ring is received into the lower pipe. The upper tube is pivotally connected to the ring via the elastic collar securely mounted between the ring and the upper tube. A seal board is mounted in an inner wall of the upper shell thereby achieving a water proof effect when the open end is securely connected to the seal board.