Respiration gas feed device for diver

[Detailed Description of the Invention]

(Field of the Invention) The present invention relates to a respiratory gas feed unit, especially the respiratory gas feed unit for diving sound. It has in a housing a respiratory gas feeding means containing the reducing valve for inflow gas which operates by moving piston Rod which this kind of respirator is attached to the piston which slides within a cylindrical vent hole, and is controlled by a lever to a longitudinal direction, Inhalation which the free end of the above-mentioned lever contacts soft pus, and the above-mentioned housing finishes with a mouthpiece - Discharge is carried out and it has an opening to a lead pipe. (Conventional technology) This kind of device is satisfactory exactly by the film in which a reaction is shown to change of ambient pressure, A respiratory gas feed unit which makes it possible to supply the quantity of respiratory gas under ambient pressure to a user, and is similar with the reducing valve on the other hand, Final decompression of the pressure of respiratory gas which has fallen to the value of a degree beforehand in the middle in the 1st decompression stage attached to the tank which has stored respiratory gas for users is ensured. however -- although the problem resulting from the cooling action about the 1st step of decompression which brings about big cooling in which the fall of gas pressure required for a gas supply device is considerable every, i.e., the tune of breathing, whenever it happens is easily solvable Similarly about the respirator which has the moving parts used as a perfect set which were described above it does not go. If these various parts are running by underwater [ with the water temperature near / a diving person / 0 degreeC ] in To cool down, for example, the temperature of the parts enumerated upwards will fall below to 0 degreeC. The air breathed out by the diving person is saturated with moisture, and is this moisture, It comes to keep a valve open eternally, respiratory gas is continuously supplied to a housing, and this makes it breathe difficult remarkably for a diving person about the feed unit which will be changed into ice if it contacts Cold parts, and "freezes" parts by freezing. (Object of the Invention) The object of the present invention is to create the respirator from which this difficulty caused by *° freeze "of the parts by icy formation is removed. (Means for solving problem) The above-mentioned object is gained providing the extension attached to the sliding support implement for piston Rod arranged in the above-mentioned housing of the side an entrance with a reducing valve, and opposite to in the above-mentioned piston Rod, and by having a thumb of hook which acts on the free end of the above-mentioned piston Rib length. Distance is made at least for Kai of the zone which cooling generates, and a valve between !, i.e., gas supply, and two operating section articles which have a tendency "is frozen" in the position where cooling generation is repeated by the maximum distance detaching between a reducing valve and the joint parts of an actuating lever and an operation lever. At least one of the parts which make mechanical connection between a piston and a film to stability according to one characteristic feature of the present invention At least one of the primary parts built with a way which restricts the flow of the heat between these two elements, i.e., piston Rod, a piston, and piston Rib length is built with the material which does not tell heat. Such arrangement of decrease [ the heat transfer between a valve, an operating section article, i.e., piston Rod, and a lever / further ] is clear. The feature and advantage of the present invention are shown by the following statements, referring to an attached drawing. (EXAMPLE) In the attached drawing, a respirator has soft pus 4 bound tight by the periphery of side wall 3 by housing 1 and cover 5 which are formed of substrate 2 with side wall 3, and cover 5 has hole 6 and compulsive supply re-Set button 7. Soft film 4 is exposed to the pressure of surrounding water in the outside, it is pulled out from housing 1 at the time of inhalation, and is discharged by the same housing 1 through lead pipe 9 with a mouth-like opening at the time of expiration, and an inner side is exposed to the pressure of the respiratory gas which escapes there through an overpressure valve (not shown). Therefore, pressure of respiratory gas is Tone(ed) by bent lever 11 according to the pressure of a circumference medium, and a diving person's respiratory amount required. One end 12 of a lever contacts central support plate 13 of film 4, and other end 14 engages with the free end of Rod 16 on which it slides in hole 17 of Rod support implement 18. Rod support implement 18 is attached to side wall 3 by sealing member 19 forced with cork 20 with a screw. As for end 14, it is advantageous to finish with the tip of the shape of a fork which the branch portion has settled on the flange of adjustment screw 15 attached to the end of Rod 16. Pressure reducing device 21 for respiratory gas pouring was attached to an opposite side edge part of Rod support implement 18, and a pressure reducing device has accepted inside pressure lead pipe 25 in it. And it has cylindrical shape part 23 connected to connecting tool 24 which forms valve seat 26 for valve 27 attached to piston 31 of an end of Rod 28 in vent hole 22 of side wall 3. A perfect assembly object is pushed in the direction which closes a valve with compression spring 29. Rod 28 is connected with Rod 16 with part 30 with a screw which make it possible to adjust the length of this assembly object. The device operates in the way from the former. It happens by inhalation, and film 4 falls as a result of the decreased pressure told via lead pipe 9, clockwise direction is made to rotate lever 11, assembly object 16-28 is displaced on the left, valve 27 is raised from valve seat 26, and respiratory gas is enabled to flow in this way. If an infiltration person breathes out a breath, a film is lifted, a flexible region will be displaced by the counter direction, and two Rod 16-18 will return it, it will close valve 27-26 in an operation of spring 29, and it will escape the breathed-out air through an exhalation valve (not shown). The Articulation movement to the above-mentioned lever 11 and Rod 16 is not directly exposed to the cooling action which arises about reducing valve 26-27 any longer by the favor of arrangement of lever 11, and extension 16.28 of piston Rod arranged from reducing valve 26-27 at the longest distance, but the danger of freezing in the stage is actually removed. In addition, - layer reduction of the danger of this freezing is carried out building Rod 16 and Rod 28, and also parts like piston 31 with the material which does not tell heat, or by designing these parts in a suitable way.

[Brief Description of the Drawings]

Drawing 1 is an upper surface figure of the respirator with Disconnect 100 figure of the respirator for underwater diving persons, and same Drawing 2. 1 ... housing, 2 ... the substrate, 3 ... the side wall, 4 ... soft film, 5 ... cover, 7 ... compulsive supply re-Set button, 9 ... lead pipe, 11 ... lever, 12.14 ... the end, 13 ... membranous central support plate, 15 ... free end of Rod 16, 16 ... Sliding rod (extension), 18 ... Rod support implement, 21 ... pressure reducing device, 24 ... connecting tool, 25 ... inside pressure lead pipe, 26 ... valve seat of a pressure reducing device, 27 ... Opposed valve, 28 ... piston Rod, 29 ... compression spring, 30 ... length regulation parts of a Rod set stand object, 31 ... piston. Fair copy (with no change by the contents) FIG of a drawing, 1 Procedure'?rf3 right document (spontaneity) May 31, Heisei 2