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 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 snorkel comprising a breathing tube and a retaining device formed on the breathing tube. The retaining device includes an elongated fastening strap having a bottom end formed integrally with the breathing tube, and a top end formed with a large first hole and a small second hole being in communication with the first hole; and a button formed integrally with the breathing tube and disposed in a position about flush with the top end of the fastening strap. The button is adapted to secure to the fastening strap by passing through the first hole and locking in the second hole in response to passing a mask strap through a gap between the fastening strap and the breathing tube.
Abstract:
A mask adapted to be attached to a user's face is disclosed. The mask comprises a body and a gas connection structure. The body is formed with an inner space which is defined along with the user's face. The inner space allows the user to breathe through the nose. The gas connection structure connects to the body so that the inner space is connectable with the ambient air via the gas connection structure. Thereby, the user is capable of breathing through his/her nose to drive the ambient air into the inner space and reduce the moisture formed in the inner space.
Abstract:
An adjustable structure for a strap is provided. The adjustable structure comprises a positioning device, a shaft, and a plurality of female fasteners formed on the surface of the strap. The positioning device has a base and a male fastener pivoted on the positioning device. The male fastener is also disposed at the end of the strap. The shaft is disposed opposite the positioning device. Accordingly, the strap is able to pass through between the base and the male fastener, and return back with respect to the shaft. The male fastener is then adapted to detachably connect with the female fastener, and thus the distance between the positioning device and the shaft is adjustable.
Abstract:
A strap structure used as a strap for an object such as mask or swim fin is disclosed. The object has a locking receptacle on either side. The strap structure includes an elastic strap having a coupling member at either end, the coupling member being adapted to releasably secure to the locking receptacle; and an adapting assembly having one end adapted to releasably secure to the coupling member and the other end releasably secure to the locking receptacle. Moreover, the adapting assembly includes one or more adapters so that the strap structure is adapted to secure around one of the different objects with various sizes.
Abstract:
A valve mounted on a dive mask is disclosed. The mask has a closed window frame, a soft skirt extending rearward from the window frame for defining a space between itself and the face of a diver wearing the mask, and one or two windows defined by the window frame. The valve is flexible, tubular and has a first opening at one end in communicating with the space, and a second opening at the other end. The second opening is blocked in an inoperative position and is adapted to open to expel water or air therethrough by increasing pressure in the space or by pressing both sides of the valve.
Abstract:
The improved snorkel dry top has a fulcrum to which a float member and a diaphragm yoke are attached. The fulcrum has a blocking tab that rests in an aperture in the float member attaching hook when the snorkel is above the surface of the surrounding water. The diaphragm yoke cannot rotate the diaphragm when the blocking tab is in the hook aperture. Therefore, even when tilted, the snorkel remains open allowing free flow of air into the snorkel tube. Another significant improvement is the connection of the float member, diaphragm and yoke to the snorkel top's splashguard mask. This improvement assures that the delicate structures of these components are not exposed to potentially destructive impact forces in the event that the splashguard mask is removed from the snorkel tube.