a) Field of the Invention
The invention relates in general to a diving watch assembly for diving, and more particular to an improved diving watch designed with an airtight and waterproof housing and including an air pressure watch core and a water pressure watch core. Further, in the diving watch of the invention, an air pressure scale and a water pressure scale are displayed on one single dial disc to facilitate a diver to inspect a diving depth and air residual of a gas cylinder.
b) Description of the Prior Art
A diving watch assembly is an essential equipment for diving. A conventional diving watch assembly mainly includes a water pressure gauge and an air pressure gauge. The water pressure gauge senses the water pressure to display a depth of the diver. The air pressure gauge is connected to a gas cylinder via an air pressure tube, and senses the air pressure of the gas cylinder to display air residual in the gas cylinder.
In an assembly of the above conventional diving watch assembly, one single water pressure gauge and one single air pressure gauge are generally embedded on a watch sheath formed by a rubber or plastic. Such type of diving watch assembly further includes a third type of watch surface on the watch sheath, e.g., a compass or even a lighting lamp, to provided the diving watch assembly with more thorough functions. However, in the above conventional diving watch assembly, as the water pressure gauge and the air pressure gauge occupy spaces of two the watch surface, the watch sheath is required to not only use a larger amount of material but also have a sufficient surface area for accommodating the two watch surfaces of the water pressure gauge and the air pressure gauge. Thus, the watch sheath has a larger overall volume and a heavier weight, causing utilization, portability and collection inconveniences.
Another drawback of the above conventional diving watch assembly is that, each type of diving information (e.g., air residual and diving depth) is provided by one display watch surface, meaning that a diver needs visually switch between two water surfaces at different positions, hence increasing the possibility of misjudgment.
To overcome the above issues, the present invention provides a diving watch assembly having a smaller volume and a lighter weight for enhancing portability and collection conveniences.
The primary object of the present invention is to provide a diving watch assembly. In the diving watch assembly, an air pressure watch core and a water pressure watch core are assembled in a same airtight and waterproof housing, and an air pressure scale and a water pressure scale are displayed on one single dial disc to facilitate a diver to inspect a diving depth and cylinder air residual.
To achieve the above object, the present invention adopts following technical means.
A diving watch assembly of the present invention includes an internal airtight and waterproof space formed by a housing, an upper cover, a transparent plate and a lower cover, and an air pressure watch core, a water pressure watch core and a dial disc installed in the internal airtight and waterproof space.
The housing, substantially a cylindrical hollow structure, includes an upper opening shaped as a trumpet opening at an upper end of the housing, an upper fastening groove at an outer periphery of the upper opening, a lower opening at a lower end of the housing, a lower fastening groove at an outer periphery of the lower opening, an inner flange at an inner periphery surface of the housing, and an air pressure tube opening at a side surface of the housing. The hollow internal space of the housing is adapted to accommodate the air pressure watch core, the water pressure watch core and the dial disc.
The upper cover is a hollow annular structure, and includes a protruding fastener at an inner periphery of the upper cover. The protruding fastener may fasten in the upper fastening groove of the housing to allow the upper cover and the housing to be closely fastened to each other.
The transparent plate is assembled between the upper cover and the housing. An annular sealing packing is provided between a bottom portion of the transparent plate and the upper opening of the housing to provide a sealing and anti-leaking function between the upper cover and housing.
The lower cover includes a protruding fastener at an inner periphery of the lower cover. The protruding fastener may fasten in the lower fastening groove of the housing to allow the lower cover and the housing to be closely fastened to each other. A plurality of water pressure holes are provided at a surface of the lower cover. A water pressure film is provided between the lower cover and the lower opening of the housing. The water pressure film and the water pressure holes allow the water pressure watch core to sense the water pressure. The water pressure film at the same time provides a sealing and anti-leaking function between the lower cover and the housing.
The air pressure watch core includes a first pointer (air pressure pointer) at an end of an axle of the air pressure watch core, and is installed in an upper space of the housing. An air inlet of the air pressure watch core may be exactly placed in the air pressure tube opening of the housing. The air pressure watch core is connected to a gas cylinder through an externally connected air pressure connector and an air pressure tube to sense the air residual in the gas cylinder. The air residual may be indicated by the first pointer on the dial disc.
The water pressure watch core includes a second pointer (water pressure pointer) at an end of an axle of the water pressure watch core, and is installed in a lower space of the housing. An internal sensing assembly of the water pressure watch core may be driven by the water pressure film to sense the water pressure of the diving depth. The water pressure may be indicated by the second pointer on the dial disc.
The dial disc is substantially a planar structure, and includes a central planar portion and an outer ramp portion. An axle opening is provided at an central end of the planar portion. An air pressure (air amount) scale is provided at a surface of the planar portion. A circular cut channel is provided between the planar portion and the ramp portion, and planar portion and the ramp portion are connected by a part that is not cut by the cut channel in between. A water pressure (water depth) scale is provided at a surface of the ramp portion.
The ramp portion of the dial disc exactly corresponds to the trumpet opening-shaped upper opening of the housing, such that the dial disc may be exactly accommodated in the upper opening of the housing. The axle opening on the dial disc may be penetrated by the axle of the air pressure watch core. The axle drives the first pointer to indicate the air residual in the gas cylinder. The circular cut channel on the dial disc may be penetrated by the second pointer of the water pressure watch core. The second pointer indicates the water pressure scale, i.e., the diving depth.
The diving watch assembly formed by the above components offers obvious advantages below. The air pressure watch core and the water pressure watch core are assembled inside the same housing, such that the components of the diving watch assembly are simplified and reduced in number while also significantly reducing the volume of the diving watch assembly. Therefore, the diving watch assembly of the present invention may be embedded at a water sheath having a smaller surface area to provide the watch sheath with a lighter overall weight, thereby not only reducing production costs of the diving watch assembly and the watch sheath but also enhancing portability and collection conveniences in actual applications.
Further, in the diving watch assembly of the present invention, with one single dial disc provided, the air residual in the gas cylinder is displayed at the central planar portion of the dial disc, and the diving depth is displayed at the outer ramp portion of the dial disc. Thus, a diver may easily read required diving information from one single watch surface, hence effectively improving drawbacks of a conventional diving watch assembly.
The above and other aspects of the invention will become better understood with regard to the following detailed description of the preferred but non-limiting embodiments. The following description is made with reference to the accompanying drawings.
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The transparent plate 21 is assembled between the upper cover 19 and the housing 10. An annular sealing packing 22 is provided between a lower portion of the transparent plate 21 and the upper opening 11 of the housing 10 to provide a sealing and anti-leakage function between the upper cover 19 and the housing 10.
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When the diving watch assembly of the present invention based on the foregoing description is completely assembled, an appearance of the diving watch assembly is substantially as shown in
It can be clearly observed from
While the invention has been described by way of example and in terms of the preferred embodiments, it is to be understood that the invention is not limited thereto. On the contrary, it is intended to cover various modifications and similar arrangements and procedures, and the scope of the appended claims therefore should be accorded the broadest interpretation so as to encompass all such modifications and similar arrangements and procedures.
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