DE1006569B - Separating flap for a chimney that also serves as a ventilation and exhaust shaft - Google Patents

Description

Separating flap for a ventilation and exhaust duct at the same time Fireplace The invention relates to a partition flap for a fireplace, which at the same time serves as a ventilation and exhaust duct and in indoor bathrooms and similar rooms or in the case of fireplaces with separately supplied combustion air. The chimney communicates with the outside air at its lower and upper ends and is opened through the partition flap into a lower ventilation duct and an upper ventilation duct Split exhaust duct. When cleaning the fireplace, this partition flap should pass through the Weight of the descending cleaning device pivoted into the open position and when Bring back the cleaning device to the starting point and hold it there will.

Divider flaps have already become known that go downwards of the cleaning device must be closed. This is where the cleaning device hits a lever protruding into the chimney, which via a linkage a separating flap closes. D. The flap can only be opened again by manual operation.

Another embodiment has also become known, in which the The separating flap is opened when the cleaning device is retrieved. These well-known Facilities are in a horizontal smoke channel that opens into the chimney built in and serve to shut off this smoke channel until the cleaning process the chimney is done.

It is not possible to use these known types in the ones to be cleaned Installing the fireplace dedicates the means for operating the flap in vertical installation are not applicable and the chimney cross-section is still open despite the partition flap being open the axis of rotation of the flap, the linkage and! the counterweight for the passage of the Cleaning tool remains locked.

According to the invention this object is achieved in that the separating flap by the weight of the descending cleaning device by one at the edge of the chimney or axis lying outside the chimney cross-section downwards into the open position is pivotable, in this by a counterweight attached eccentrically on the flap is held and rides a sweeping line not obstructing driver who is taken with him for so long when the cleaning device is retrieved until the flap automatically falls back into the closed position due to the counterweight.

The way the device works is as follows: This is made from a sphere If the existing cleaning equipment is lowered into the chimney, the ball hits on the separating flap and turns this flap around the outside of the shaft cross-section horizontal axis pointing downwards, and an off-center counterweight holds the flap in its open position. The separating flap is provided with a driver, which swings into the chimney cross-section above the ball when the flap is opened, However, the sweeping line does not interfere, but when retrieving the cleaning device causes the flap to be carried along until the flap is pushed by the counterweight automatically falls back into the closed position. The driver is at the same time swung out of the chimney cross-section again.

The driver is expediently made of a perpendicular to the separating flap surface standing return fork. It can be used, for example, as a notched sheet metal disc, be designed as a wire fork or the like.

In the figures, an embodiment of the invention is shown. You put a chimney with a built-in partition flap at different times of the cleaning process. As Fig.l shows, the supply air comes from below from the Ventilation shaft 6 and enters through the opening 12 into the room. Between the chimney 7 and. the ventilation duct 6 see the dividing flap 1.

Above the separating flap 1, the exhaust air can exit through the opening 13 enter the room in the exhaust shaft 7. Fig. 5 shows the plan from Fig. 1.

Fig.2 shows the first part of the movement of the separating flap 1 during the cleaning process The cleaning device 9 hit the separating flap 1 from above and presses it down around pivot point 5 by its own weight. The counterweight 2 .and: the return fork 4 make this rotary movement until the center of gravity of the entire system wanders over the pivot point 5 and thereby the separating flap 1 is pressed against the chimney wall. This state is shown in Figure 3. While the downward movement of the separating flap 1, the return fork is swiveled into the chimney area, the sweeping line 8 in the cutout 10 of the return fork 4 slid in is. The section 10 is in Fig. 6, which shows the plan of Fig. 3, too see. The retrieval of the cleaning device can be seen in Fig. 4. In the Upward movement of the cleaning device 9, the return fork 4 is taken along for so long until the separating flap 1 falls back into the closed position by the counterweight 2.

Claims (2)

PATENT CLAIMS: 1. Separating flap for one at the same time as a ventilation and chimney serving chimney, characterized in that the separating flap (1) by the weight of the descending cleaning device (8, 9) by one at the edge of the manhole or axis (5) lying outside the shaft cross-section downwards into the open position is pivotable, in this by a counterweight attached to the flap (1) eccentrically (2) is held and with a 1 carrier that does not hinder the sweeping line (8) (4, 11) is provided, which when retrieving the cleaning device from .this so long is taken, the flap bit automatically into the closed position by the counterweight falls behind. 2. Separating flap according to claim 1, characterized in that the driver consists of a return fork (4) perpendicular to the separating flap surface. In Publications considered: German Patent Specifications No. 87 325, 604 475.