RU177462U1 - Device for saving people on the water and for high-speed swimming - Google Patents

Abstract

The device is designed to save people on the water in case of ship accidents or accidents with the help of muscular strength of a person. A device for saving people on the water and for high-speed swimming, characterized in that it contains a life jacket with the possibility of fixation by the swimmer's legs, having positive buoyancy sufficient for holding the swimmer on the surface of the water, two blades in the form of a segmental surface of a sphere, two rods with handles, free ends fixed in the center of the blades, while the length of the rods allows VTSU perform reciprocating movements of the blades, and the blades with rods and handles have positive buoyancy, and with the translational movement of the blades float and glide over the surface of the water, and with the return motion the blades are immersed in water and make strokes. In the device blades, rods and handles can be made of stainless steel or reinforced plastic. In the device, the positive buoyancy of the blades can be achieved due to the presence of air cavities in them or due to attached to the blades swimming trunks made of foam or foam rubber. In the device, the blades with rods and handles can be made collapsible or folding. In the device, the handles can be made in the form of rings or in the form of the letter G with bends in accordance with the physiological structure of human hands. can be painted with reflective or fluorescent orange paint. The device can have attachments in the form of a navigator, compass, whistle, radio transmitter, radio beacon, flashing light, rocket launcher, flashlight, electric source travel, waist belt, harness hinge, knife, hat, swimming mask, breathing tube, food container, fresh water container and inflatable or folding mattress. The technical result provided by the above set of signs is to increase the efficiency of the device. The device can be used in human professional activities, in sports, for games and entertainment on the water, as well as for swimming training.

Description

Device for saving people on the water and for high-speed swimming

The device is designed to save people on the water in case of ship accidents or accidents with the help of the muscular strength of a person due to the quick location of the device on the water and departure from the place of the accident on the device.

A device is known for saving people on the water in case of ship accidents or accidents, both for rescuers and for those rescued by quickly leaving the scene of the accident, as well as for entertainment and sports purposes by providing a high swimming speed, containing a float and blades made flat, streamlined, made of materials such as polystyrene foam or from flexible spring plates such as foam rubber, additional blades of a bucket or funnel shape are installed next to the blades, RF patent No. 2494913, 10/10/2013.

The disadvantage of this device is its complexity and inefficiency. A swimmer with one hand should raise one lobe above the water, with the other hand make a stroke with the second lobe in the water, and spend a large amount of energy to lift the blades to the surface of the water. In this case, the efforts on the hands of the swimmer are distributed unevenly, the body of the swimmer wriggles in the water, creating dangerous loads on the spine.

The electromechanical toy of the author I. Chekhomov is known, in which a package of plastic hemispheres connected by a rubber band and located at a certain distance from each other due to the presence of bushings located between the hemispheres is used as a drive in the water. When the package is stretched from hemispheres, water enters the space between the hemispheres. When the packet is compressed from hemispheres, water exits from the hemispheres, creating reactive thrust. Source: Internet, website: http://www.freshdesigner.ru/watertechnics-014.htm.

The disadvantage of this device is its low efficiency due to the large hydrodynamic resistance created by hemispheres that are constantly in water in a submerged state.

The problem to which the invention is directed is to increase the efficiency of the device.

This problem is solved due to the fact that the device for saving people on the water and for high-speed swimming is characterized by the fact that it contains a blade in the form of a segmental surface of a sphere, a rod fixed at one end in the center of the blade, a handle connected to the other end of the rod, and the rod with the handle allows the swimmer to perform reciprocating movements with the blade, the blade, shaft and handle having positive buoyancy.

A swimmer, being on the surface of the water and holding the device in front of him by the handle in a horizontal position and performing reciprocating movements with his blade, begins to swim forward. With the return movement of the blade, namely, when the blade approaches itself, the blade goes under water, and the swimmer makes a stroke. With the translational movement of the device, the blade floats due to its positive buoyancy, and slides along the surface of the water even with a small effort by the swimmer. In this case, the swimmer does not need to put extra effort to raise the blade above the water. When working with two hands, the efforts on the hands of the swimmer are evenly distributed, the swimmer’s spine does not experience unusual bending loads, and allows the swimmer to swim a long distance. While resting on the water or waiting for help, the swimmer can be held on the surface of the water with a vertical arrangement of the device due to the air bubble located under the dome of the blade.

The technical result provided by the given set of features in the device is to increase the efficiency of the device when saving a person on the water.

The figure shows the proposed device, side view.

A device for saving people on water and for high-speed swimming characterized in that it contains a blade 1 in the form of a segmental surface of a sphere, a rod 2, one end fixed in the center of the blade 1, a handle 3 connected to the other end of the rod 2, while the rod 2 with the handle 3 allow the swimmer to perform reciprocating movements with the blade 1, and the blade 1, rod 2 and handle 3 have positive buoyancy.

The device operates as follows.

A person on a shipwrecked ship can jump down into the water while holding the device in his hands. In the presence of a life vest, a person can first put it on himself, fixing the vest on the body with straps, including missing the leg straps between the legs. Then, a person holding the device by the handle 3, placing the blade 1 above his head, takes a deep breath, holds his breath and jumps into the water. A man with a device, like a parachute, enters the water in an upright position. In water, the dome of the blade 1 captures air and does not allow a person to plunge deeply into the water and provides him with a quick ascent.

A person can first throw a device into the water, and then jump himself and pick it up on the water.

While in the water, a person places the device in front of him and, holding it by the handle 3, performs reciprocating movements with the blade 1 and floats away from the shipwrecked ship. A person, bringing the blade 1 closer to himself and applying a certain effort to the device, makes a stroke and moves his body forward in the water. Pushing the blade 1 away from himself, a person also makes efforts, but much less than during the stroke. The blade 1, having positive buoyancy and made in the form of a segmental surface of a sphere, floats and glides over the surface of the water.

To accelerate movement in water, a person also works with his feet, pushing them off the water, in antiphase with the movement of the blade 1, for example, in the style of a breaststroke.

A person can use the device as a sail, substituting the dome of the blade 1 under a fair wind or under a fair current.

If a person does not know how to swim, then in anticipation of help, he can be held on the surface of the water due to the air bubble located under the dome of the blade 1 of the device in an upright position.

Having sailed from a dangerous place to a safe distance, a person must wait for rescuers using the available warning equipment. To do this, a person can turn on the beacon and use other means of detection, if equipped with a device.

If a person sailed from the accident site on two devices, holding them in his left and right hand, then he can help another person who left the vessel without a rescue device, giving him one of the devices, or take this person in tow.

In the device, the blade 1, rod 2 and handle 3 can be made of stainless steel or reinforced plastic.

In the device, the positive buoyancy of the blade 1 can be achieved due to the presence of air cavities in it or due to a float attached to the blade 1 made of foam or foam rubber.

The device can be made collapsible or folding.

In the device, the handle 3 can be made in the form of a ring or in the form of the letter G with bends in accordance with the physiological structure of human hands.

The device can be painted with reflective or fluorescent orange paint.

The device can be divided into two parts, into two blades 1 with rods 2 and handles 3.

The device may have attachments in the form of a navigator, a compass, a whistle, a radio transmitter, a beacon, a flashing light, a rocket launcher, a flashlight, an electric power source, a waist belt, a halyard, a knife, a hat, a swimming mask, a breathing tube, a container with food, a container with fresh water, life jacket and inflatable or folding mattress.

The author made a model of the device and tested it in the bathroom, filling the bathtub with water.

The blade model 1 in the form of a segmental surface of a sphere with a diameter of 280 mm, a height of 110 mm, a weight of 230 g and a capacity of 4.8 liters was made from the top of a 30 liter plastic bottle of beer. Beer and bottle manufacturer: Varnitsa LLC.

The segmental surface of the sphere was tested indiscriminately, together with a cork and a plastic air vent attached to the neck fitting on the inside of the surface. The length of the tube is 550 mm, the outer diameter of the tube is 15.50 mm, the wall thickness of the tube is 0.65 mm. The wall at the end of the segmental surface of the sphere is elastic, the wall thickness is 0.20 mm, to the center - the wall thickens and becomes solid. An exhaust pipe was used as a rod. At a distance of 100 mm from the free edge of the tube, a loop of tape was made to fix the dynamometer.

To prevent the model from drowning, a ring of waterproof foam rubber with a weight of 40 g, a diameter of 170 mm, a thickness of 57 mm and a hole with a diameter of 70 mm was put on the neck outside the segmental surface of the sphere. The free end of the tube, acting as a rod, was closed by a stopper. Such a model floats on the surface of the water, while half of the segmental surface of the sphere is in the water, the tube lies on the surface of the water.

To measure the forces that need to be applied to the model when moving it through water, a household dynamometer with a scale of 10 kgf and a scale division of 0.1 kgf was used.

The efforts to move the model of the blade with the above dimensions, placed on the water, at a speed of 1 m / s, amounted to: when moving the model forward - about 0.3 kgf, back - 3.0 kgf.

As handles 3 and rods 2 can be used canes for the disabled, sold in pharmacies and in stores "Health Products".

Segmented surfaces of the sphere can be manufactured at the Varnitsa LLC enterprise or at factories manufacturing goods from polymeric materials, for example, MosPlast, http://www.plast.msk.ru/ or Sosnovskagropromtekhnika OJSC, www.sapt.ru/ thermoplastic.html, or stainless steel, for example, in the Nerzhavstal Shipyard, http://www.nerzhavstal.com/, St. Petersburg, or at the Metal Construction Plant, Lyubertsy, Moscow Region, http: // www. itpmet.ru/nerzhavejka.

The device can be painted with reflective paint manufactured by Noxton or AS-55U fluorescent enamel of Alp Enamel CJSC. The device can be manufactured in artisan workshops.

The device can be used in professional activities of a person, in sports, for games and entertainment on the water, as well as for swimming training.

Legend to the figure

1. Life vest

2. The blade

3. The blade

4. The core

5. The core

6. pen

7. pen

Claims (7)

1. A device for saving people on the water and for high-speed swimming, characterized in that it contains a blade in the form of a segmental surface of a sphere, a rod fixed at one end in the center of the blade, a handle connected to the other end of the rod, and the rod and handle allow the swimmer to perform reciprocating motion of the blade, and the blade, rod and handle have positive buoyancy. 2. The device according to claim 1, characterized in that the blade, shaft and handle are made of stainless steel or reinforced plastic. 3. The device according to claim 1, characterized in that the positive buoyancy of the blade is ensured due to the presence of air cavities in it or due to a float attached to the blade made of foam or foam rubber. 4. The device according to p. 1, characterized in that it is made collapsible or folding. 5. The device according to p. 1, characterized in that the handle is made in the form of a ring or in the form of the letter G with bends in accordance with the physiological structure of the human hands. 6. The device according to p. 1, characterized in that it is painted with reflective or fluorescent orange paint. 7. The device according to p. 1, characterized in that it has attachments in the form of a navigator, a compass, a whistle, a radio transmitter, a beacon, a flashing light, a rocket launcher, a flashlight, an electric power source, a waist belt, a halyard, a knife, a hat, a mask for swimming , breathing tube, food container, fresh water container, life jacket and inflatable or folding mattress.

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