RU1835369C - A respiratory device for a swimmer - Google Patents

Abstract

The invention relates to breathing apparatus for swimmers, in particular breathing tubes. An object of the invention is to improve performance by preventing water from entering the breathing tube. The device consists of a breathing tube 1, which has an inlet a at one end, through which air enters, and a mouthpiece 2 at the other end. A rubber casing 3 is put on the inlet. The opening B is a valve seat 4. At the top of the breathing tube inside the inlet, on a thin-walled outlet tube 5 with a small (2.5-3 mm) bore, which is centered using a cross 6. On the free end of the outlet tube, a valve 4 is made of elastic rubber, in the upper part of the breathing tube, on top of it , a container 7 is placed, made of elastic rubber and protected from damage by a housing 8 consisting of two halves. 2 ill.

Description

. Figure 1.

The invention relates to breathing apparatus for swimmers.

An object of the present invention is to improve performance by preventing water from entering the breathing tube.

This goal is achieved in that in a breathing device having a breathing tube with a mouthpiece and a valve with a locking element in the housing, the valve body is made in the form of a container with a central opening, the locking element is made in the form of a bellows placed under the opening, and the device is equipped with an elastic chamber, fixed on top of the breathing tube, the inner chamber cavity is communicated by means of a discharge tube to the bellows cavity, and the outer surface is in contact with the environment.

When hydrostatic pressure is applied to the elastic chamber, pneumatic pressure is created in it, acting on the locking element, which consequently blocks the access of water to the breathing tube when immersed in water, regardless of its position.

The design of the device and the principle of operation are visible in the presented graphic materials and in the description below.

The device according to the invention (Fig. 1) consists of a breathing tube having an inlet a on one side, through which air enters, and a mouthpiece 2 on the other end. A rubber casing 3 is placed on the inlet, in which the aperture is a valve seat 4 .

In the upper part of the breathing tube, inside the inlet to a thin-walled outlet tube 5, with a small (2.5-3 mm) flow section, which is centered by

crosses 6. A valve 4 made of elastic rubber is put on the free end of the branch pipe. In the upper part of the breath. of the tube over it, a container 7 is placed, made of elastic rubber and protected from damage by the housing 8, consisting of two halves.

The operation of the device is as follows:

When a swimmer immerses himself in water (Fig. 2), the container 7 is compressed by the pressure of the environment, and the air contained therein is displaced through the exhaust pipe 5 into the internal cavity of the valve 4, which inflates as it fills, blocking the seat in the body 3, and thus prevents water from entering the breathing tube. When the swimmer ascends to the surface (Fig. 1), the tank 7 passes to its original state, since the internal pressure decreases to atmospheric pressure, and the valve 4 drops, allowing the swimmer to take a breath.

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Formula of the sample A breathing apparatus for a swimmer comprising a breathing tube with a mouthpiece and a valve with a locking element in a body fixed to the inlet end of the tube, characterized in that, in order to improve performance characteristics by eliminating the ingress of water into the breathing tube, the valve body is made in the form of a container with a central hole, the locking element is made in the form of a bellows placed under the hole, while the device is equipped with an elastic chamber mounted on top of the respirator of the tube, the inner cavity of the chamber is communicated by means of a discharge tube with the cavity of the bellows, and the outer surface is in contact with the environment.

FIG. I