JPH0324398B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a ventilation pipe for a life-saving waterproof mask used in the event of a marine accident or the like.

(Prior art) Lifesaving equipment such as immersion suits (or survival suits) and life jackets used in the event of a marine accident are usually made so that only the face is above the sea surface, so they cannot be used at sea. During rescue attempts, large waves often submerged people's faces, resulting in death from breathing difficulties or rapid exhaustion.

Therefore, in order to prevent such a situation, while waiting for rescue at sea, you can avoid being affected by the waves.
Life-saving waterproof masks have been proposed that allow people to breathe safely.

Figure 1 shows an example of such a waterproof mask. 1 is a floating body with a weight at the bottom, and 2 is a vent that rises upward from the floating body when it is floating on the water surface and has an air intake port at the tip. The trachea, 3, is a cover for preventing water droplets from entering the intake port, and 4 is a facepiece, which is equipped with an exhaust valve for discharging exhaled air to the outside, and a drain valve for discharging the water that has entered. 5 is a flexible connecting pipe that connects the face piece 4 and the ventilation pipe 2. Note that a water draining device may be provided in the section A in FIG. The illustration does not show the immersion suit or life jacket.

By using a waterproof mask constructed in this way, you can breathe safely while taking care of yourself at sea.

However, even though the air inlet is provided with a waterproof cover 3, in the event of large waves, water may enter the air pipe 2 and the connecting pipe 5, and the face piece 4.
It may even reach the part of In this case, a drain valve is provided on the facepiece 4 and the ventilation pipe 5 near it, but if the lower part of the ventilation pipe 2 or the connecting pipe 5 hangs down below the facepiece as shown in FIG. Water that has entered cannot be drained outside.

(Problems to be Solved by the Invention) The present invention has been made to eliminate such drawbacks, and is designed to drain water that has entered the ventilation pipe to the outside and prevent water from entering the connecting pipe. The purpose of this invention is to provide a life-saving waterproof mask ventilation pipe.

(Means for Solving the Problem) In order to achieve this object, the ventilation pipe of the life-saving waterproof mask of the present invention penetrates the floating body, and when the floating body floats on the water surface, it rises upward from the floating body and reaches the bottom end. A drain valve and an intake port are provided at the upper end, and a cover is attached to the intake port to prevent water splashes from entering. Furthermore, a branch pipe to which a flexible connecting pipe connected to the face piece is connected is arranged between the intake port and the floating body.

(Function) When in use, the ventilation pipe of the life-saving waterproof mask with the above structure is located at an appropriate height above the sea level and is covered with a cover, so that the intrusion of seawater spray etc. is prevented as much as possible. However, even if water does get in, if the water level rises above the outside water level, the drain valve installed at the bottom opens and drains the water, so no water will get into the flexible connecting pipe or the facepiece, and you will be able to breathe safely. can.

Hereinafter, embodiments will be described in detail with reference to the drawings.

(Example) FIG. 2 shows an example of the present invention.
1 is a floating body, which has sufficient buoyancy and is provided with an appropriate weight 6 at the bottom. Reference numeral 7 denotes a ventilation pipe which passes through the floating body 1, has an intake port 7' at its upper end, and a drain valve 8 at its lower end. Further, a branch pipe 9 is provided that projects laterally at an appropriate angle between the intake port 7' and the floating body 1, and the flexible connecting pipe 5 is connected to this branch pipe 9.

Next, the operation of this embodiment configured as described above will be explained. First, although water is prevented from entering the intake port 7' by the cover 3, if water should enter, it will flow down the vertical portion of the ventilation pipe 7. There is a drain valve 8 at the lower end of the vent pipe 7, and since this drain valve 8 is blocked by external water pressure, a small amount of water that has entered will not be drained and will remain in the vent pipe, but the amount of water will increase further. When the water level inside the vent pipe 7 becomes higher than the water level outside, the drain valve 8 opens due to gravity, and a portion of the water inside the pipe is discharged to the outside.

In this way, even if water enters from now on, the water inside the ventilation pipe 7 will not reach a height higher than the water level outside, and therefore the water will flow through the branch pipe 9 toward the flexible connecting pipe 5. There is no going into it.

In addition, a drain valve 8 is provided to prevent water from entering from the drain port at the lower end of the vent pipe 7 due to wave pressure, etc., and a drain port cover 10 is also provided to further enhance the effect. .

(Effects of the Invention) As explained above, according to the present invention, even if water enters from the intake port, it will not enter beyond the connecting pipe, so the wearer of the waterproof mask can feel safe. It has the effect of allowing you to breathe.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the configuration of a conventional example, and FIG. 2 is a diagram showing the configuration of a conventional example.
FIG. 1 is a configuration diagram of an embodiment of the present invention. 1... Floating body, 3... Cover, 4... Face piece, 5...
...Flexible connecting pipe, 6... Weight, 7... Ventilation pipe, 8... Drain valve, 9... Branch pipe.

Claims (1)

[Claims] 1. A floating body, a ventilation pipe that rises upward from the floating body when the floating body is floating on the water surface and has an intake port at its tip, a cover that covers the intake port to prevent the intrusion of water splashes, etc., and at least a person A life-saving waterproof mask consisting of a face piece that covers the mouth and nose of the floating body and has an exhaust valve, and a flexible connecting pipe that has one end connected to the face piece and the other end connected to the ventilation pipe, wherein the ventilation pipe is connected to the floating body. A life saving device characterized in that the flexible connecting pipe penetrates through the pipe, is provided with a drain valve at its lower end, and the other end of the flexible connecting pipe is connected to an end of a branch pipe arranged between the air intake port and the floating body. Waterproof mask ventilation pipe.