RU29986U1 - Movable ventilation grill - Google Patents

Description

MOVABLE VENTILATION GRILLE

The utility model relates to devices intended for installation on ventilation openings of residential and office premises.

A ventilation nozzle is known from the patent literature (A.S.SSSR No. 994871, F24F13 / 06, BI No. 5-83), including a housing and guide plates placed therein, combined by strips in separate groups. Known fixed nozzles designed to stabilize airflow

The traditional design of the ventilation grille is known (see GOST 13448-82 "Plastic ventilation grilles. Technical conditions). It is a trellised plastic plate.

Also known is a plastic ventilation grill made in the form of a one-piece panel (PM No. 14462; F 24 F 13/08, BIPM No. 21-2000).

Such a grill is fixed in the ventilation hole to filter the exhaust air, it eliminates the ingress of foreign objects into the room from the ventilation system and serves to some extent to filter the air entering the ventilation system.

However, when using such a design, it is impossible to judge the state of the ventilation duct; it is difficult to determine whether ventilation (exhaust) is occurring.

The purpose of the development of the created utility model is to create a ventilation grill design that provides the ability to control the condition of the ventilation duct and the intensity of the hood.

The problem is solved by creating a design of the ventilation grille, including a rectangular panel equipped with a movable element made

F24F 13/08

with the possibility of rotation in a plane perpendicular to the direction of air movement.

In addition, the movable element is a flat disk that covers a circular hole made in the center of the panel, and radial grooves with inwardly curved edges are cut in the disk in a circle.

Distinctive features of the claimed technical solution is the supply of the ventilation grill with a movable element.

The supply of the grill with a movable element (impeller) allows us to judge the presence of air movement through the ventilation grill.

The implementation of the impeller blades in the form of bent plates provides ease of rotation under the influence of air flow.

The utility model is illustrated in the drawing, where in FIG. 1 shows a grating; in FIG. 2 view AA of FIG. 1.

The device is a panel of rectangular cross-section 1, in the center of which there is a round hole 2 with a protruding rim 3. The panel 1 is provided with a flange around the perimeter 4. Panel 1 has holes 5 for the fasteners at the corners of the corners.

On the flanging side 4, a flat elongated rectangular plate 5 is attached to the panel 1, it extends along the diameter of the hole 2. A fixed axis 6 with a movable sleeve 7 is attached to the plate 5 in its center. The axis 6 is located in the center of the circular hole 2. On the other side of the plate 5, a movable element is mounted on axis 6, mounted for rotation in a plane perpendicular to the direction of air movement through the ventilation grill. It is a disk 8 with a rim 9, bent towards the panel 1. The diameter of the disk 8 is slightly larger than the diameter of the hole 2. The disk 8 overlaps the hole 2, there is a gap between the rims 9 and 3.

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According to the etching in the disk 8, radial sector grooves are cut 10. One of the radial edges 11 of the groove is bent inward. Thus, the movable element itself is an impeller. The outer diameter along which the grooves 10 are cut is several millimeters smaller than the diameter of the hole 2.

The device operates as follows.

The grille is installed on the ventilation hole of a residential or office building from the air inlet side.

In the presence of air movement through the ventilation channel, the impeller rotates, indicating the presence of ventilation and its intensity.

Claims (2)

1. A movable ventilation grill comprising a rectangular panel, characterized in that it is provided with a movable element configured to rotate in a plane perpendicular to the direction of air movement. 2. The movable ventilation grill according to claim 1, characterized in that the movable element is a flat disk covering a circular hole made in the center of the panel, and radial grooves with inwardly curved edges are cut in the disk.