Abstract: A mask structure that has one lens assembly and a first injection molded component, while not having an inner waterproof ring, is provided. The first injection molded component is disposed on the periphery of the lens assembly, and has a skirt portion with an inner surface that is flat without the need of providing an inner waterproof ring.

Abstract: A waterproof mask is provided in this invention. The waterproof mask comprises a frame portion and a leaning portion that is tightly connected to the frame portion. The leaning portion has a plurality of first structures and a plurality of second structures, which are alternately arranged. The first thickness of each of the first structures is thinner than the second thickness of the second structure. Due to the differences in thickness, the leaning portion of the waterproof mask can be adjusted according to the user's face shape for a perfect fit.

Abstract: A snorkel and a mouthpiece assembly of the snorkel are disclosed, in which the mouthpiece assembly includes a main body, a mouthpiece and a whistle. The mouthpiece is connected to the main body; and the whistle has a pivoting portion and a blowing portion opposite to the pivoting portion, in which the pivoting portion is pivotally connected to the main body. The snorkel further includes a tube connected to the main body and communicating with the mouthpiece. In this way, the user can rotate the whistle against the main body for making the whistle face the mouth of the user, instead of greatly rotating the mouthpiece assembly against the tube.

Abstract: An adjusting strap is provided. The adjusting strap has a strap body and at least one fastening portion. An end zone of the strap body has at least one fastening hole, which is disposed along the strap body in a lengthwise direction. The fastening portion is disposed on the strap body and located at an inside area adjacent to the fastening hole, the at least one fastening portion is integrally formed with the strap body and extends away from a top surface of the strap body. When the end zone of the strap is bent in reverse, the fastening portion is capable of threading through the fastening hole to be in position.

Abstract: A goggle mask is provided. The goggle mask includes at least one check valve device with a soft body and at least one valve disk. The soft body is integrally connected with the soft nose masking portion of the goggle mask. The soft body has a draining hole. The valve disk is adapted to movably cover the draining hole. With this arrangement, there are no hard objects that come into contact with the user's face, so the user may feel less uncomfortable. A check valve device and a method for manufacturing a check valve device of a goggle mask are also provided.

Abstract: A buckling device for fastening a belt is provided. The buckling device comprises a first portion, a second portion, an elastic portion and at least one push portion. The elastic portion is disposed between the first portion and the second portion. The second portion engages with the belt and the belt is fastened. The at least one push portion is integrally formed with the elastic portion and is exposed from the first portion and the second portion. The at least one push portion is adapted to be pushed inwards by an external force to force the elastic portion to extrude outwards so that the second portion is forced to move outwards to release the belt.

Abstract: A buckling device for fastening a belt is provided. The buckling device comprises a first portion, a second portion and an elastic portion. The elastic portion is made of a material with a shore hardness substantially between A10 and A95. The elastic portion contacts the first portion and the second portion, so that the second portion engages with the belt and the belt is fastened.

Abstract: A swimming/diving goggle structure is disclosed, which comprises a spectacle frame, a mask, two connecting elements and an elastic strap. At least one skirt portion of the mask surrounds at least one edge of the spectacle frame. The connecting elements are disposed on two sides of the spectacle frame respectively. Each of two ends of the elastic strap has a connecting portion. One of each connecting element and each connecting portion has at least one protrusion; the other has at least one hole for the at least one protrusion to pass therethrough and thereby, the connecting element and the connecting portion are connected.

Abstract: A fin comprising a foot pocket, two ribs and a web portion is provided in this invention. The foot pocket has a surrounding portion and a base portion, which together define a foot receiving space. The surrounding portion has a plurality of first and second structures; the ribs extend forwards from two sides of the foot pocket respectively; and the web portion is formed between the two ribs. The first structures and the second structures are alternately arranged, and a first thickness of each of the first structures is thicker than a second thickness of each of the second structures. Thereby, the foot pocket of the fin is made flexible and elastic for swimmers or divers with different foot forms and sizes.

Abstract: A goggle structure is disclosed, which includes: a facial mask, having a skirt portion and a nose portion connected with each other; a frame, connected to the skirt portion; a lens assembly, disposed within the frame; and a soft supporting member softer than the frame, disposed between the frame and the skirt portion, and at least located above the nose portion and extending toward the skirt portion. In this way, the soft supporting member can separate at least part of the frame from the skirt portion, resulting in that the frame will not be pressed against the user's face when an external force is exerted.

Abstract: A snorkel and a mouthpiece assembly of the snorkel are disclosed, in which the mouthpiece assembly includes a main body, a mouthpiece and a whistle. The mouthpiece is connected to the main body; and the whistle has a pivoting portion and a blowing portion opposite to the pivoting portion, in which the pivoting portion is pivotally connected to the main body. The snorkel further includes a tube connected to the main body and communicating with the mouthpiece. In this way, the user can rotate the whistle against the main body for making the whistle face the mouth of the user, instead of greatly rotating the mouthpiece assembly against the tube.

Abstract: A goggle mask is provided. The goggle mask includes at least one check valve device with a soft body and at least one valve disk. The soft body is integrally connected with the soft nose masking portion of the goggle mask. The soft body has a draining hole. The valve disk is adapted to movably cover the draining hole. With this arrangement, there are no hard objects that come into contact with the user's face, so the user may feel less uncomfortable. A check valve device and a method for manufacturing a check valve device of a goggle mask are also provided.

Abstract: A waterproof mask is provided in this invention. The waterproof mask comprises a frame portion and a leaning portion that is tightly connected to the frame portion. The leaning portion has a plurality of first structures and a plurality of second structures, which are alternately arranged. The first thickness of each of the first structures is thinner than the second thickness of the second structure. Due to the differences in thickness, the leaning portion of the waterproof mask can be adjusted according to the user's face shape for a perfect fit.

Abstract: A frame structure for use in goggles is disclosed. The frame structure comprises a main body, which comprises a hard portion and a soft portion. The hard portion is a rigid body, while the soft portion is an elastomer. The soft and the hard portions are molded integrally, wherein the integrally molded portions define at least one receiving space and is adapted to receive at least one lens.

Abstract: A buckle includes a strap slidably looped around a strut proximate a front opening of a housing, a spring-biased, lever-like ratchet having front and rear sections and a front engagement tooth adapted to matingly engage with one of a plurality of rack teeth on an upper surface of the strap, and two opposite pivotal arms extending outside of the housing. Pressing the arms will push down the rear section to lift the front section to disengage the engagement tooth from the rack tooth, thereby adjusting the buckle in discrete increments to tighten the strap.

Abstract: A buckling device for fastening a belt is provided. The buckling device comprises a first portion, a second portion, an elastic portion and at least one push portion. The elastic portion is disposed between the first portion and the second portion. The second portion engages with the belt and the belt is fastened. The at least one push portion is integrally formed with the elastic portion and is exposed from the first portion and the second portion. The at least one push portion is adapted to be pushed inwards by an external force to force the elastic portion to extrude outwards so that the second portion is forced to move outwards to release the belt.

Abstract: A waterproof structure of a respiratory tube is provided. The waterproof structure comprises a hollow body and a lid. The hollow body has a first opening end and a second opening end opposing to the first opening end. The lid pivots onto the hollow body at the first opening end. Before the lid is immersed into liquid, the gravity of the lid can keep the lid at a certain position so that the respiratory tube is well-ventilated. After a part of the lid is immersed into the liquid, the buoyancy provided by the liquid forces the closing surface thereof to substantially seal the first opening end and prevent liquid from going into the tube.

Abstract: A buckling device for fastening a belt is provided. The buckling device comprises a first portion, a second portion and an elastic portion. The elastic portion is made of a material with a shore hardness substantially between A10 and A95. The elastic portion contacts the first portion and the second portion, so that the second portion engages with the belt and the belt is fastened.

Abstract: A floater for used in a snorkel is provided. The floater is a porous structure with a plurality of pores for reducing the density of the floater. The density of the floater is substantially less than 1.1 g/cm3 so that the floater can float up easily when immersed in water and subjected to buoyancy, and thus, block water flow into the snorkel. Preferably, the floater is a single piece structure to enhance the strength against the water pressure, thereby, preventing the floater from rupturing easily.

Abstract: In one embodiment a head strap of goggles or mask includes a case at about an intermediate position of the strap and having a hole at either side. A first cord securely passes a first channel in one section of the strap to have one end being exposed to form a first speaker and the other end being disposed in the case by passing one hole. A second cord securely passes a second channel in the other section of the strap to have one end being exposed to form a second speaker and the other end being disposed in the case by passing the other hole. A music player (e.g., MP3 audio player) is adapted to store in the case and is operatively connected to a plug at a joining portion of the other ends of the first and second cords in the case. The case and/or the music player can be waterproof.