DE9217702U1 - Distribution box for supply and/or exhaust air - Google Patents

Description

SCHAKO metal goods factory Ferdinand Schad KG

- Branch office Kolbingen 7201 Kolbingen

Distribution box for supply and/or exhaust air

The invention relates to a distribution box for supply and/or exhaust air with an outer housing frame that encloses an interior space, has an inlet or outlet opening for the air and is connected to an air duct system via a connecting piece.

Such supply and exhaust air distribution boxes have been around for many years. They are used to distribute or equalize air that is to be introduced into a room, for example. In many cases, this requires adjusting the amount of air that is to be supplied or exhausted. Complex mechanisms are known for this, -:0 which require a lot of effort. Simpler control elements, on the other hand, are difficult to access and usually remain in a position once set.

The present invention is based on the task of creating a simple way of adjusting the air volume, which does not require a great deal of effort and whose regulation

is possible at any time even after the distribution box has been installed.

This task is solved by inserting a quantity adjustment flap into the connection piece on an axle shaft, which can preferably be accessed with a tool from the inlet or outlet opening.

For example, a normal disk can be used as a quantity adjustment flap, by means of which the connection piece can be closed or opened. However, a perforated disk is preferably used, whereby the perforated disk causes a backflow in the air duct system so that the air can always flow evenly into the interior of the distribution box.

The key feature of the present invention is that the quantity adjustment flap can be operated very easily from the inlet or outlet opening, since this opening faces the room. Therefore, the quantity adjustment flap should be located on an axle shaft that can be accessed from the side of the inlet or outlet opening with a tool or by the hand of an operator. Therefore, the axle shaft is extended from the quantity adjustment flap to near the inlet or outlet opening, but is rotatably mounted on corresponding bearing tabs near the connection piece.

In the present embodiment, the axle shaft is covered by a ring flange that runs around the inlet and outlet openings, but there is a hole in the ring flange through which a corresponding tool can be inserted. A head on the axle shaft, which has a slot or hexagon socket, for example, into which the tool can be inserted, then serves as a holder for this tool. By rotating the tool, the axle shaft and thus also the quantity

adjustment flap is turned so that the air volume is regulated.

Another perforated plate, which is inserted into the interior of the distribution box, serves to further equalize the air volume.

Furthermore, the volume control flap can also be designed as a fireproof plate so that in the event of a fire it remains in its set position and its removal does not increase the air flow and thus facilitate the spread of the fire.

Further advantages, features and details of the invention will become apparent from the following description of preferred embodiments and from the drawing, which shows in
5

Fig. 1 shows a cross section through a distribution box according to the invention;

Fig. 2 shows a cross-section rotated by 90 degrees through the distribution box according to Fig. 1 along line II - II.

According to Fig. 1, a distribution box R according to the invention has an outer housing frame 1 which encloses an interior space I. This interior space I is limited at the top by a cover plate 2, while it has an inlet or outlet opening 3 at the bottom. A known air grille, for example with slats, can be inserted or placed in front of this inlet or outlet opening.

To attach the distribution box R, for example to a wall or ceiling, 2 holes 4 for corresponding fastening elements are provided above the cover plate.

On the edge of the outer housing frame 1 there is a connection piece 5 which is connected to a corresponding air duct system. Supply and/or exhaust air can be guided from or to the distribution box R via this connection piece 5.

Inside the connection piece 5 there is a quantity adjustment flap 6, via which the air quantity that is led from or to the distribution box R can be regulated. In the present embodiment, the quantity adjustment flap 6 is designed as a perforated sheet metal disc.

An axle shaft 7, which can be rotated along its longitudinal axis A, is used to support the quantity adjustment flap 6. For this purpose, the axle shaft 7 passes through two bearing brackets 8 and 9 outside the connection piece 5. Furthermore, the axle shaft 7 extends to an annular flange 10 that runs around the inlet or outlet opening 3, and has a head 11 near the annular flange 10. In this head 11, for example, a slot, a hexagon socket or the like is formed into which a tool 12 can be inserted.

Using this tool 12, the axle shaft 7 can be rotated about its longitudinal axis A and thus the position of the quantity adjustment flap 6 can be changed. This change in position influences the amount of air supplied or discharged.

In order that the head 11 can be gripped by the tool 12, there is a corresponding hole (not shown in detail) in the ring flange 10 through which the tool 12 can be inserted.
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A perforated plate 13, which is inserted into the interior space I, serves to further equalize the air supplied or discharged.

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DR. WHITE

PATENT ATTORNEY _x EUROPEAN PATENT ATTORNEY

HiLEf-ON (07733) 2014- 15 MOBILE PHONE: 0 16 11 708239 FAX: (0 7733) 26 78 TELEX: 793 763 weis d

File number:

2611.9

Date: 15.12.1992

POSITI ons numbers: [STE Longitudinal axis 1 outer casing tube 34 A 2 Cover plate 35 3 Inlet or outlet opening 36 I inner space 4 Hole 37 5 Connection piece 38 6 Quantity settings 11kl " 39 R Distribution box 7 Axle shaft 40 8th Bearing tab 41 9 ft 42 10 Ring flange 43 11 Head 44 12 Tool 45 13 Perforated sheet 46 14 47 15 48 16 49 17 50 18 51 19 52 20 53 21 54 22 55 23 56 24 57 25 58 26 59 27 60 28 61 29 62 30 63 31 64 32 65 3 3 6 6_,

Claims (5)

-5- Protection claims 1. Distribution box for supply and/or exhaust air, with an outer housing frame (1) which encloses an interior space (I), has an inlet or outlet opening for the air and is connected to an air duct system via a connecting piece (5),
10 characterized, that a quantity adjustment flap (6) is inserted into the connection piece (5) on an axle shaft (7), which can preferably be attacked with a tool (12) from the inlet or outlet opening (3). 2. Distribution box according to claim 1, characterized in that the axle shaft (7) penetrates two bearing lugs (8 and 9) near the connection piece (5) and extends to near the inlet or outlet opening (3). 3. Distribution box according to claim 2, characterized in that the axle shaft (7) runs along the outer housing frame (1) up to an annular flange (10) surrounding the inlet or outlet opening (3) and is accessible through a hole in this annular flange (10). 4. Distribution box according to one of claims 1-3, characterized ⁱⁿ that a head (11) is formed on the axle shaft (7), which has a slot, a hexagon socket or the like. 5. Distribution box according to at least one of claims 1-4, characterized in that a perforated plate (13) is inserted into the interior (I).