JPH0431079Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to an oxygen supply mask body, and more specifically, to smoothly supply oxygen obtained from a portable oxygen generator etc. to the user. This relates to the mask body.

[Prior art and its problems to be solved]

The applicant has developed a compact oxygen generator that can safely and easily supply oxygen in emergencies and has filed a patent application as Japanese Patent Application No. 60-266239.

That is, this oxygen generator has an oxygen recovery port at the top of the container body to continuously generate oxygen for a certain period of time through a solution reaction, and an oxygen filtration unit is detachably attached to the oxygen recovery port. Furthermore, it is configured by detachably attaching a lid body containing an oxygen supply mechanism that communicates with the inside of the filtration part to the top opening of the filtration part, but it is not necessary to supply oxygen filtered by the filtration part to the user. Since the last resort is a small-diameter supply pipe, there are some points that need improvement, such as the fact that oxygen cannot be supplied smoothly in cases where the user cannot inhale oxygen by eating the supply pipe. confirmed.

[Means for solving problems]

Therefore, in this invention, an oxygen jet pipe whose axis intersects the side wall at a predetermined angle is integrally attached to the side wall of a funnel-shaped main body made of soft synthetic resin, and a jet of oxygen is provided near the spout of this oxygen jet pipe. An oxygen supply mask body comprising a protruding turbulent flow member, one or more outside air circulation holes and exhaled air exhaust holes at predetermined locations on one side wall, and a filtering material disposed inside the ejection pipe. By connecting this to the oxygen supply pipe of the oxygen generator, oxygen can be supplied smoothly.

[Effect]

In the oxygen supply mask body according to this invention, the oxygen supplied through the spout of the oxygen jet pipe is stirred and diluted with outside air in the funnel-shaped main body by the action of the turbulence member, and then smoothly supplied to the user. It is.

〔Example〕

Next, preferred embodiments of the oxygen supply mask body according to the present invention will be described in detail below with reference to the accompanying drawings.

In the accompanying drawings, an oxygen supplying mask body 10 according to the present invention includes a funnel-shaped main body 16 made of soft polypropylene resin or the like and having an opening 14 large enough to cover the user's nose and mouth, and an oxygen generating body 16 (not shown). The oxygen ejection pipe 18 for inserting the oxygen supply pipe 1 of the device is integrally molded.

A flange 20 is formed on the periphery of the opening 14 of the funnel-shaped main body 16 so as to be in close contact with the user's face, and a through hole 22 which mainly functions as an outside air inflow hole is provided at a predetermined location on both side walls. .

On the other hand, an ejection pipe 18 is protruded from the lower inner wall of the funnel-shaped main body 16 so that its axis A intersects with the lower inner wall surface at a predetermined angle.
A turbulent flow member 26 is formed in front of the ejection port 24, and a through hole 28 is provided near the turbulent flow member 26 to be used mainly as an exhalation outlet for the user.

Further, a filtration filter 30 formed by, for example, bundling a large number of fibrous acetate sheets together with a sheet member is inserted into the oxygen ejection pipe 18 . In this case, if the inner diameter of the ejection tube 18 is tapered so that it becomes slightly larger toward the tip, it will not only be easier to insert the filter, but it will also be able to hold the filter in a predetermined position. suitable.

When using the oxygen supply mask body according to the present invention configured as described above, the oxygen injection pipe 18 is connected to the supply pipe 1 of the oxygen generator, and the opening 14 of the funnel-shaped main body 16 is used to connect the user's nose and Just cover your mouth and breathe. That is, supply pipe 1
The oxygen supplied to the jet pipe 18 from the filter 3
After water or fine mist is removed when passing through the air outlet 0, the outside air collides with the turbulent flow member 26 when it is ejected from the air outlet 24 into the main body 16, and further flows in from the air hole 22 (and the air hole 28). It is diluted and inhaled by the user. Further, the exhaled breath of the user is discharged to the outside through the through holes 28 (or through holes 22) provided at positions substantially opposite to the nostrils.

〔effect〕

As mentioned above, the oxygen supply mask body according to the present invention can not only be suitably used as an attachment for the oxygen generator according to the applicant's earlier application, but also
When connected to this oxygen generator, water and fine mist in the oxygen are removed by a filter material, and then diluted with outside air flowing in through outside air ventilation holes, etc., so the concentration is suitable for the human body. It has various advantages such as being able to easily and smoothly supply oxygen, and its practical effects are extremely large.

The preferred embodiments of the oxygen supplying mask body according to the present invention have been described above, but the present invention is not limited to these embodiments. Various modifications may be made without departing from the spirit of the present invention, such as configuring it to remove the gas, or incorporating a check valve mechanism in a part of the fumarole pipe so that the supplied oxygen can be used economically. Of course, it is possible to do this.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional explanatory view showing a preferred embodiment of the oxygen supply mask body according to the present invention, and FIG. 2 is a perspective view of FIG. 1. 10... Oxygen supply mask body, 14... Opening,
16...Funnel-shaped main body, 18...Oxygen jet pipe, 20
... flange, 22 ... through hole, 24 ... spout,
26... Turbulent flow member, 28... Through hole, 30... Filtration filter.

Claims (1)

[Scope of utility model registration request] An oxygen jet pipe whose axis intersects the side wall at a predetermined angle is integrally attached to the side wall of the funnel-shaped main body made of soft synthetic resin, and a turbulent flow member for jetting oxygen is protruded near the spout opening of this oxygen jet pipe. 1. An oxygen supplying mask body, further comprising one or more outside air circulation holes and exhaled air exhaust holes formed at predetermined locations in the side wall portion, and a filter material disposed inside the ejection tube.