Trigger unit for extinguishing devices
A trigger unit ( 1 ) for triggering an extinguishing-agent flow in the direction of a fire zone, connected to an energy supply, having a first actuating device ( 3 ) that can be switched between a release position in which the energy supply is released, and an interruption position in which the energy supply is interrupted, a second actuating device ( 5 ) that can be switched between a release position in which the extinguishing-agent flow is released, and a rest position, a coupling unit ( 7 ) that can be moved between an operating position and an extinguishing position and permanently couples together the switching of the first actuating device ( 3 ) and the second actuating device ( 5 ). A tensioning element is connected in a force-transmitting manner to the coupling unit ( 7 ) in such a manner that a change in the tensioning state of the tensioning element always results in a movement of the coupling unit ( 7 ).
1. A trigger unit ( 1 ) for extinguishing devices for triggering an extinguishing-agent flow in the direction of a fire zone, said zone being connected to an energy supply, having
a first actuating device ( 3 ) that can be switched between a release position in which the energy supply is released, and an interruption position in which the energy supply is interrupted,
a second actuating device ( 5 ) that can be switched between a release position in which the extinguishing-agent flow is released, and a rest position,
a coupling unit ( 7 ) connected to the first actuating device ( 3 ) and connected to the second actuating device ( 5 ) and that can be moved between an operating position and an extinguishing position and permanently couples together the switching of the first actuating device ( 3 ) and of the second actuating device ( 5 ), and
a tensioning element ( 9 ) that is connected in a force-transmitting manner to the coupling unit ( 7 ) in such a manner that a change in the tensioning state of the tensioning element always results in a movement of the coupling unit ( 7 );
wherein in the operating position of the coupling unit ( 7 ) the tensioning element exerts a restoring force on the coupling unit ( 7 ) in the direction of the extinguishing position, the tensioning element having a spring ( 9 );
a holding and tensioning mechanism ( 11 ) wherein in the operating position of the coupling unit ( 7 ), the holding and tensioning mechanism ( 11 ) accommodates the restoring force of the tensioning element;
wherein the holding and tensioning mechanism ( 11 ) comprises a first cable ( 13 ), the first cable ( 13 ) being connected to the coupling unit ( 7 ) via a deflection element ( 14 );
wherein the holding and tensioning mechanism ( 11 ) comprises a stationary and rotatably mounted reel ( 19 ) to which the first cable ( 13 ) is fastened and around which it can be wound.
2. The trigger unit ( 1 ) according to claim 1 ,
wherein in the operating position of the coupling unit, the first actuating device ( 3 ) is in the release position and the second actuating device ( 5 ) is in the rest position, and
in the extinguishing position of the coupling unit the first actuating device ( 3 ) is in the interruption position and the second actuating device ( 5 ) is in the release position.
3. The trigger unit ( 1 ) according to claim 1 ,
wherein the holding and tensioning mechanism ( 11 ) comprises a holding member ( 15 ) that is attached to a first end of the first cable ( 13 ), the holding member ( 15 ) being adapted to release the first cable ( 13 ) when limit value representing five characteristic is exceeded or when a deactivating signal is present, the holding member ( 15 ) being a thermal separation member that can be destroyed under the effect of a temperature increase in the case of a fire.
4. The trigger unit ( 1 ) according to claim 1 ,
wherein the first actuating device ( 3 ) comprises a second cable ( 29 ) that is fastened to the coupling unit ( 7 ), and
wherein the first cable ( 13 ), the deflection element ( 14 ) and the reel ( 19 ) form a block and tackle.
5. The trigger unit ( 1 ) according to claim 1 ,
wherein the holding and tensioning mechanism ( 11 ) comprises a locking element ( 21 ) that can be movable between a locking position and a release position,
the reel being prevented from rotational movement in the locking position, and being released for rotational movement in the release position.
6. The trigger unit ( 1 ) according to claim 5 ,
having a second tensioning element that exerts a restoring force on the locking element ( 21 ) in the direction of the locking position, the second tensioning element having a torsion spring ( 23 ).
7. The trigger unit ( 1 ) according to claim 5 ,
wherein the holding and tensioning mechanism ( 11 ) comprises at least one manual release devices by means of which the locking element ( 21 ) can be moved from the locking position into the release position.
8. The trigger unit ( 1 ) according to one of claim 5 ,
wherein a cam ( 27 ) is attached to a section of the first cable ( 13 ) and coupled to the locking element ( 21 ) such that the locking element ( 21 ) is moved from the locking position into the release position when the first end of the first cable ( 13 ) is disconnected.
9. The trigger unit ( 1 ) according to one of claim 5 ,
wherein the locking element ( 21 ) is designed as a rocker.
10. The trigger unit ( 1 ) according to claim 5 ,
wherein the second actuating device ( 5 ) comprises an actuating arm ( 31 ) that is mounted rotatably about a stationary point ( 33 ).
11. The trigger unit ( 1 ) according to claim 10 , wherein the actuating arm ( 31 ) is arranged on a receiving and distributing unit ( 35 ) for a propellant cartridge ( 37 ).
12. The trigger unit ( 1 ) according to claim 11 ,
wherein the actuating arm ( 31 ) comprises a guide ( 39 ) that cooperates with the coupling unit ( 7 ) such that a movement of the coupling unit ( 7 ) results in a rotation of the actuating arm ( 31 ) about a stationary point ( 33 ).
13. The trigger unit ( 1 ) according to claim 12 ,
wherein the guide ( 39 ) exhibits an elongated hole ( 41 ) in which a pin ( 43 ) of the coupling unit ( 7 ) can be moved.
14. An extinguishing device ( 100 ) for extinguishing fires, comprising:
a trigger unit ( 1 ) for triggering an extinguishing-agent flow in a direction of a fire zone, said zone being connected to an energy supply,
a propellant cartridge ( 37 ) for providing a propellant, and
an extinguishing-agent reservoir ( 45 )
the trigger unit ( 1 ) comprising:
a first actuating device ( 3 ) that can be switched between a release position in which the energy supply is released, and an interruption position in which the energy supply is interrupted,
a second actuating device ( 5 ) that can be switched between a release position in which the extinguishing-agent flow is released, and a rest position,
a coupling unit ( 7 ) connected to the first actuating device ( 3 ) and connected to the second actuating device ( 5 ) and that can be moved between an operating position and an extinguishing position and permanently couples together the switching of the first actuating device ( 3 ) and of the second actuating device ( 5 ), and
a tensioning element ( 9 ) that is connected in a force-transmitting manner to the coupling unit ( 7 ) in such a manner that a change in the tensioning state of the tensioning element always results in a movement of the coupling unit ( 7 );
wherein in the operating position of the coupling unit ( 7 ) the tensioning element exerts a restoring force on the coupling unit ( 7 ) in the direction of the extinguishing position, the tensioning element having a spring ( 9 );
a holding and tensioning mechanism ( 11 ) wherein in the operating position of the coupling unit ( 7 ), the holding and tensioning mechanism ( 11 ) accommodates the restoring force of the tensioning element;
wherein the holding and tensioning mechanism ( 11 ) comprises a first cable ( 13 ), the first cable ( 13 ) being connected to the coupling unit ( 7 ) via a deflection element ( 14 );
wherein the holding and tensioning mechanism ( 11 ) comprises a stationary and rotatably mounted reel ( 19 ) to which the first cable ( 13 ) is fastened and around which it can be wound.
15. A trigger unit ( 1 ) for extinguishing devices for triggering an extinguishing-agent flow in the direction of a fire zone, said zone being connected to an energy supply, having
a first actuating device ( 3 ) that can be switched between a release position in which the energy supply is released, and an interruption position in which the energy supply is interrupted,
a second actuating device ( 5 ) that can be switched between a release position in which the extinguishing-agent flow is released, and a rest position,
a coupling unit ( 7 ) connected to the first actuating device ( 3 ) and connected to the second actuating device ( 5 ) and that can be moved between an operating position and an extinguishing position and permanently couples together the switching of the first actuating device ( 3 ) and of the second actuating device ( 5 ), and
a spring ( 9 ) that is connected in a force-transmitting manner to the coupling unit ( 7 ) in such a manner that a change in a tensioning state of the spring always results in a movement of the coupling unit ( 7 );
wherein in the operating position of the coupling unit ( 7 ), the spring exerts a restoring force on the coupling unit ( 7 ) in the direction of the extinguishing position;
a holding and tensioning mechanism ( 11 ) wherein in the operating position of the coupling unit ( 7 ), the holding and tensioning mechanism ( 11 ) accommodates a restoring force of the spring;
wherein the holding and tensioning mechanism ( 11 ) comprises a first cable ( 13 ), the first cable ( 13 ) being connected to the coupling unit ( 7 ) via a deflection element ( 14 );
wherein a second cable ( 29 ) of the first actuator device ( 3 ) and the first cable ( 13 ) of the holding and tensioning mechanism ( 11 ) are connected to a pivot arm ( 31 ) of the second actuator ( 5 ).