RU224215U1 - SUPPLY AND EXHAUST UNIT VALVE - Google Patents

Abstract

The utility model relates to devices that provide ventilation of residential and public buildings and is intended for controlled air flow into the premises of residential and public buildings with natural or mechanical exhaust ventilation. The technical result consists in increasing the reliability of the functioning of the windproof valve of the supply and exhaust device by securely fixing it in the extreme closed position. The essence of the utility model is that the windproof valve, intended for placement in the channel of the supply and exhaust ventilation device, is made in the form of a rotating plate mounted on axes with the possibility of changing the flow area of the channel. According to the utility model, the plate is equipped with a metal element fixed on one of its sides with the ability to interact with a fixedly installed magnet to fix the plate in its extreme position, blocking the channel. The metal element is made in the form of a bent strip, one side of which is attached to the surface of the plate, and the other side of the strip is located at an angle to the surface of the plate. 3 ill.

Description

The utility model relates to devices that provide ventilation of residential and public buildings and is intended for controlled air flow into the premises of residential and public buildings with natural or mechanical exhaust ventilation.

A known valve is designed for placement in the channel of a supply and exhaust ventilation device, made in the form of a rotating plate mounted on axes with the possibility of changing the flow area of the channel (see Operating Manual for the KIV QUADRO valve https://vortice.ru/catalog/pritochnye- klapany-kiv-kvadro-kiv-quadro/.

The disadvantage of the known valve of the supply and ventilation device is its spontaneous opening depending on wind or thermal pressure differences, which leads to the passage of air into the room when the windproof valve is completely closed.

The technical challenge is to prevent the valve from opening spontaneously.

The technical result consists in increasing the reliability of the operation of the valve of the supply and exhaust device by securely fixing it in the extreme closed position.

The technical problem is solved, and the technical result is achieved by the fact that the valve, intended for placement in the channel of the supply and exhaust ventilation device, is made in the form of a rotating plate mounted on axes with the possibility of changing the flow area of the channel, while, according to the utility model, the plate is equipped with a metal element fixed on one of its sides with the ability to interact with a stationary magnet to fix the plate in its extreme position, blocking the channel, while the metal element is made in the form of a bent strip, one side of which is attached to the surface of the plate, and the other side of the strip is located under angle to the surface of the plate.

The utility model is illustrated with the help of drawings.

In fig. 1 – a supply and exhaust ventilation device is shown;

In fig. 2 – valve.

In fig. 3 – a cross-section of the supply and exhaust ventilation device is shown.

The supply unit includes: a housing 1 with a channel 2, inside of which there is a supply and exhaust valve 3, made in the form of a rotating plate mounted on axes 4 with the possibility of changing the flow area of channel 2.

The valve plate 3 is made airtight and is equipped with stiffeners 5 and a metal element 6, fixed on one side of the valve plate 3 with the ability to interact with a stationary magnet 7 to fix the valve plate 3 in its extreme position, blocking the channel 2. In this case, the metal element 6 made in the form of a bent strip, one side of which is attached to the surface of the valve plate 3, and the other side of the strip of element 6 is located at an angle to the surface of the valve plate 3.

The device operates as follows. The supply and exhaust ventilation device is installed indoors. When the supply and exhaust valve 3 is fully open, due to the pressure difference from the outside and inside of the building, caused by the difference in air temperatures, wind influences or exhaust fans of the mechanical ventilation system, outside air enters through the external protective grille and the air duct into the channel 2 of the supply unit. When the supply and exhaust valve 3 is completely closed, despite an increase in pressure drop, for example, due to an increase in wind speed and, accordingly, an increase in air flow speed, the valve 3 does not open spontaneously due to the fact that the magnet 7, interacting with the bent strip of element 6, holds valve 3 is closed.

The described device ensures reliable retention of the supply and exhaust valve 3 in a closed state over a wide range of pressure differences.

If necessary, the air flow through the supply device can be adjusted manually by changing the angle of inclination of the valve plate 3.

Thus, the reliability of the operation of the valve of the supply and exhaust device is increased by securely fixing it in the extreme closed position.

Claims (1)

A valve intended for placement in the channel of a supply and exhaust ventilation device, made in the form of a rotating plate mounted on axes with the possibility of changing the flow area of the channel, characterized in that the plate is equipped with a metal element fixed on one of its sides with the ability to interact with a fixedly installed a magnet to fix the plate in its extreme position, blocking the channel, while the metal element is made in the form of a bent strip, one side of which is attached to the surface of the plate, and the other side of the strip is located at an angle to the surface of the plate.