DE102018120280A1 - xRauchabzugseinrichtung - Google Patents

Abstract

The invention relates to a smoke extraction device comprising a frame (1), a flap (2) pivotably mounted on the frame (1), an actuating device (3) designed to pivot the flap (2) relative to the frame (1) and a smoke-tight closure the flap (2) with respect to the frame (1) formed locking device (4). According to the invention, the actuating device (3) has a chain drive (3.1) and the locking device (4) has a bolt (4.1) that is operatively connected to the chain drive (3.1).

Description

The invention relates to a smoke extraction device according to the preamble of patent claim 1.

A smoke extraction device of the type mentioned is from the document DE 20 2012 013 340 U1 known. This consists (compare in particular paragraph [0031]) of a frame, a pivotally mounted flap on the frame, an actuating device designed for pivoting the flap relative to the frame and a closing device designed for smoke-tight closing of the flap relative to the frame.

The invention has for its object to improve a smoke extraction device of the type mentioned. In particular, a smoke extraction device is to be created with which the actual leak rate, that is to say ultimately the amount of smoke flowing out through the defined opening between the flap and the frame, can be set particularly simply and precisely.

This object is achieved with a smoke extraction device of the type mentioned by the features listed in the characterizing part of patent claim 1.

According to the invention it is therefore provided that the actuating device has a chain drive and the locking device has a bolt that is operatively connected to the chain drive.

In other words, the solution according to the invention is characterized in that, thanks to the combination of chain drive and bolt, it is possible to simply set the smoke leak rate with the aid of the actuating device, which will be explained in more detail below.

Other advantageous developments of the smoke extraction device according to the invention result from the dependent claims.

For the sake of completeness we will refer to the document DE 20 2008 005 010 U1 pointed.

The smoke extraction device according to the invention, including its advantageous further developments according to the dependent claims, is explained in more detail below with reference to the drawing of a preferred exemplary embodiment.

• 1 perspektivisch die erfindungsgemäße Rauchabzugseinrichtung in geöffneter Stellung; und
• 2 im Schnitt den Mechanismus am Übertragungsmodul zur Umsetzung einer Längsbewegung der Kette in eine Drehbewegung für den Riegel.

It shows

• 1 in perspective the smoke extraction device according to the invention in the open position; and
• 2 on average the mechanism on the transmission module for converting a longitudinal movement of the chain into a rotary movement for the bolt.

The smoke extraction device shown in the figures initially consists of a frame in a known manner 1 , one swiveling on the frame 1 stored flap 2 , one for pivoting the flap 2 towards the frame 1 trained actuator 3 and one for the smoke-tight closing of the flap 2 towards the frame 1 trained locking device 4 ,

It is preferably provided that the frame is optional 1 and / or the flap 2 from a sheet material of the building material class A1 respectively. A2 (national) according to DIN 4102-1 or (European) according to DIN EN 13501-1. Considered in more detail, it is particularly preferably provided that the plate material consists primarily of gypsum.

In addition, it is preferably provided that the frame 1 is formed as part of a stud wall or is formed from the plate elements of the stud wall itself.

Alternatively, provision can also be made for the smoke extraction device to be installed as an independent component (smoke extraction damper) in a wall or shaft construction. Depending on the design of the wall or shaft construction, the installation frame of the smoke extraction damper can also be designed as part of the wall or shaft construction.

It is essential for the smoke extraction device according to the invention, and this applies to all embodiments, that the actuating device 3 a chain drive 3.1 and the locking device 4 one with the chain drive 3.1 active tie 4.1 having.

It is particularly preferred that the bolt 4.1 (which could also be called a closure), as in 1 recognizable as a latch lock (see for example https://de.wikipedia.org/w/index.php?title=T%C3%BCr%C3%B6ffner & oldid = 178972652). Alternatively, what is not shown separately, it can also be provided that the bolt 4.1 as (known from windows and doors) gear rail (with corresponding mushroom heads or the like) is formed.

Considered in more detail, it is particularly preferably provided that the chain drive 3.1 an optional on the frame 1 (so it is in 1 shown) or the flap 2 (not shown separately) arranged drive module 3.1.1 comprises a motor for retracting and extending a chain drive 3.1 belonging chain 3.1.2 and a housing which accommodates the motor and which accommodates at least part of the chain (at least one end of the chain always protrudes from the housing). With regard to the more precise functioning of such a drive module, reference is made again to the document mentioned above DE 20 2008 005 010 U1 referenced, in which a double chain drive is explained, but this is not a hindrance in order to understand the basic operating principle of such drives known per se.

Regarding the chain drive 3.1 it is further provided that this comprises a chain consisting of several chain links, each chain link (as in the document DE 20 2008 005 010 U1 known) has a stop cooperating with the adjacent chain link at the same point to restrict its mobility.

Furthermore, it is particularly preferably provided that the chain drive 3.1 an optional on the flap 2 (so it is in 1 shown) or on the frame 1 (not shown separately) arranged transmission module 3.1.3 comprises a mechanism for power transmission from one to the chain drive 3.1 belonging chain 3.1.2 on the tie 4.1 having. The said bar 4.1 can be a particularly tight seal of the flap 2 to ensure on several sides of the flap 2 with the frame 1 be designed to work together.

Again examined in more detail (see in particular 2 ), it is also particularly preferably provided that the mechanism is displaceable on the transmission module 3.1.3 stored and with the chain 3.1.2 connected control element 3.1.3.1 having. Furthermore, it is preferably provided that the mechanism rotates on the transmission module 3.1.3 stored and with the latch 4.1 active spindle 3.1.3.2 having. Furthermore, it is preferably provided that the actuating element 3.1.3.1 to convert its axial movement into a rotational movement of the spindle 3.1.3.2 one with a threaded part of the spindle 3.1.3.2 cooperating thread counterpart. It is also provided that the threaded part of the spindle 3.1.3.2 is not designed to be self-locking, ie the threaded connection between the actuating element 3.1.3.1 and the spindle 3.1.3.2 has such a large slope that one on the control element 3.1.3.1 applied axial force without problems in a on the spindle 3.1.3.2 tapped torque is converted.

In the solution according to 2 is for this purpose (i.e. to decrease the torque) at one end of the spindle 3.1.3.2 a gear is arranged, from which the torque, for example with the aid of a suitable gear or the like on the bolt 4.1 is transmitted. It is particularly preferred, but not shown separately, that the spindle 3.1.3.2 immediately with the bolt 4.1 is operatively connected, that is, with a corresponding spatial arrangement of the individual components, it is provided that the spindle 3.1.3.2 at one of its ends as immediate with the latch 4.1 cooperating square shaft is formed, the bolt 4.1 in this case has a correspondingly form-fitting through or engaging opening.

Again with reference to 2 is preferred on the transmission module 3.1.3 a guide element 3.1.3.3 (especially in the form of a cylindrical rod) for the actuator 3.1.3.1 intended. The axis of rotation is the spindle 3.1.3.2 preferably parallel to the main axis of the guide element 3.1.3.3 graduated.

Furthermore, as also in 2 shown, preferably provided that on the transmission module 3.1.3 one in the direction of displacement of the actuator 3.1.3.1 and on this spring element acting when moving 3.1.3.4 is arranged. This spring element 3.1.3.4 is particularly preferred as preferably the guide element 3.1.3.3 enclosing helical compression spring.

Finally, as shown, it is also particularly preferred that the spindle on both sides 3.1.3.2 each preferably with a spring element 3.1.3.4 provided guide element 3.1.3.3 is arranged.

• Ausgangspunkt der Betrachtung ist eine geschlossene Klappe, also ein brand- und damit rauchfreier Zustand. Entsteht nun auf einer Seite der Ständerwand Rauch, so wird die Klappe geöffnet, damit der Rauch über einen entsprechenden Rauchabzugskanal abziehen kann. Zum Öffnen wird dabei der eingangs genannte Motor betätigt, was dazu führt, dass sich die Kette 3.1.2 aus dem Gehäuse des Antriebsmoduls heraus bewegt. In diesem Moment ist dabei der Riegel 4.1 noch geschlossen, d. h. noch ist die Klappe 2 fest und auch rauchdicht mit dem Rahmen 1 verbunden. Durch die sich bewegende Kette 3.1.2 wird dann aber auch das Stellelement 3.1.3.1 auf den Führungselementen 3.1.3.3 gegen die Kraft der Federelemente 3.1.3.4 verschoben, was gleichzeitig dazu führt, dass die Spindel 3.1.3.2 gedreht wird. Dies wiederum hat zur Folge, dass ein Drehmoment auf den Riegel 4.1 ausgeübt und dadurch die Schließeinrichtung 4 geöffnet wird.

The smoke extraction device according to the invention works as follows:

• The starting point for consideration is a closed flap, i.e. a fire-free and therefore smoke-free condition. If smoke now arises on one side of the stud wall, the flap is opened so that the smoke can escape via a corresponding smoke exhaust duct. To open it, the motor mentioned at the beginning is actuated, which leads to the chain becoming tangled 3.1.2 moved out of the housing of the drive module. At this moment the deadlock is on 4.1 still closed, ie the flap is still open 2 firm and also smoke-tight with the frame 1 connected. Through the moving chain 3.1.2 but then becomes the control element 3.1.3.1 on the guide elements 3.1.3.3 against the force of the spring elements 3.1.3.4 postponed, which at the same time leads to the spindle 3.1.3.2 is rotated. This in turn results in torque on the latch 4.1 exercised and thereby the locking device 4 is opened.

Once this is done, the chain continues to move 3.1.2 opening the hatch 2 , in a simple manner and to the extent that a corresponding control or regulation determines it and the drive module 3.1.1 has specified. In 1 a situation is shown in which the flap is open about 40 °.

Should no longer discharge smoke or the flap 2 To be closed again for other reasons, this is done in reverse order, ie only the chain 3.1.2 together with the flap 2 withdrawn. Once the mouth shut 2 is closed, the further train on the chain 3.1.2 that the locking device 4 is closed again.

LIST OF REFERENCE NUMBERS

1

frame

2

flap

3

actuator

3.1

chain drive

3.1.1

drive module

3.1.2

Chain

3.1.3

transmission module

3.1.3.1

actuator

3.1.3.2

spindle

3.1.3.3

guide element

3.1.3.4

spring element

4

closing device

4.1

bars

QUOTES INCLUDE IN THE DESCRIPTION

This list of documents listed by the applicant has been generated automatically and is only included for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• DE 202012013340 U1 [0002]
• DE 202008005010 U1 [0008, 0017, 0018]

Claims (10)

Smoke extraction device, comprising a frame (1), a flap (2) pivotally mounted on the frame (1), an actuating device (3) designed to pivot the flap (2) relative to the frame (1) and a smoke-tight closure of the flap (2 ) compared to the frame (1) designed locking device (4), characterized in that the actuating device (3) has a chain drive (3.1) and the locking device (4) has a bolt (4.1) operatively connected to the chain drive (3.1). Smoke extraction device after Claim 1 characterized in that the chain drive (3.1) comprises a drive module (3.1.1) which is optionally arranged on the frame (1) or the flap (2) and which has a motor for extending and retracting a chain (3.1 .2) and a housing accommodating the motor and suitable for accommodating at least part of the chain. Smoke extraction device after Claim 1 or 2 characterized in that the chain drive (3.1) comprises a transmission module (3.1.3) which is optionally arranged on the flap (2) or on the frame (1) and which has a mechanism for transmitting power from a chain (3.1. 2) on the bolt (4.1). Smoke extraction device after Claim 3 , characterized in that the mechanism has an adjusting element (3.1.3.1) which is displaceably mounted on the transmission module (3.1.3) and connected to the chain (3.1.2). Smoke extraction device after Claim 3 or 4 , characterized in that the mechanism has a spindle (3.1.3.2) which is rotatably mounted on the transmission module (3.1.3) and is operatively connected to the bolt (4.1). Smoke extraction device after Claim 5 , characterized in that the adjusting element (3.1.3.1) has a counterpart thread which interacts with a threaded part of the spindle (3.1.3.2) in order to convert its axial movement into a rotational movement of the spindle (3.1.3.2). Smoke extraction device according to one of the Claims 1 to 6 , characterized in that the bolt (4.1) is formed on several sides of the flap (2) cooperating with the frame (1). Smoke extraction device according to one of the Claims 1 to 7 , characterized in that the chain drive (3.1) comprises a chain consisting of several chain links. Smoke extraction device after Claim 8 , characterized in that each chain link has a stop cooperating with the adjacent chain link at the same location to limit its mobility. Smoke extraction device according to one of the Claims 1 to 9 , characterized in that the frame (1) is designed as part of a stud wall .

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