EP2319756A2 - Activation device for an inflation device for inflating inflatable buoyant bodies - Google Patents
Activation device for an inflation device for inflating inflatable buoyant bodies Download PDFInfo
- Publication number
- EP2319756A2 EP2319756A2 EP10187989A EP10187989A EP2319756A2 EP 2319756 A2 EP2319756 A2 EP 2319756A2 EP 10187989 A EP10187989 A EP 10187989A EP 10187989 A EP10187989 A EP 10187989A EP 2319756 A2 EP2319756 A2 EP 2319756A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- container
- ambient pressure
- pressure
- piston
- inflator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000004913 activation Effects 0.000 title claims abstract description 25
- 230000000903 blocking effect Effects 0.000 claims abstract description 10
- 230000003213 activating effect Effects 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 239000012528 membrane Substances 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 claims 1
- 230000001960 triggered effect Effects 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63G—OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
- B63G8/00—Underwater vessels, e.g. submarines; Equipment specially adapted therefor
- B63G8/40—Rescue equipment for personnel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B7/00—Collapsible, foldable, inflatable or like vessels
- B63B7/06—Collapsible, foldable, inflatable or like vessels having parts of non-rigid material
- B63B7/08—Inflatable
- B63B7/085—Accessories or mountings specially adapted therefor, e.g. seats, sailing kits, motor mountings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C9/00—Life-saving in water
- B63C9/02—Lifeboats, life-rafts or the like, specially adapted for life-saving
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C9/00—Life-saving in water
- B63C9/08—Life-buoys, e.g. rings; Life-belts, jackets, suits, or the like
- B63C9/11—Life-buoys, e.g. rings; Life-belts, jackets, suits, or the like covering the torso, e.g. harnesses
- B63C9/125—Life-buoys, e.g. rings; Life-belts, jackets, suits, or the like covering the torso, e.g. harnesses having gas-filled compartments
- B63C9/1255—Life-buoys, e.g. rings; Life-belts, jackets, suits, or the like covering the torso, e.g. harnesses having gas-filled compartments inflatable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C9/00—Life-saving in water
- B63C9/08—Life-buoys, e.g. rings; Life-belts, jackets, suits, or the like
- B63C9/18—Inflatable equipment characterised by the gas-generating or inflation device
- B63C9/19—Arrangements for puncturing gas-generating cartridges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C9/00—Life-saving in water
- B63C9/24—Arrangements of inflating valves or of controls thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C9/00—Life-saving in water
- B63C2009/0023—Particular features common to inflatable life-saving equipment
Definitions
- the invention relates to a triggering device for an inflator for inflating inflatable floats according to the preamble of claim 1.
- Such trip devices are used, for example, in submarine rescue devices that include an inflatable float, such as an inflatable liferaft or an inflatable dinghy, and an inflator provided to inflate the float.
- the folded float is housed in a non-inflated state together with the inflator in a container, wherein the container usually has a container wall and an opening disposed therein, through which the float can leave the container.
- a rescue device is housed in these rescue facilities, which - under certain predetermined rescue conditions - activates the inflator and initiates the inflation of the float.
- the tripping devices known from the prior art comprise an operating head, which is coupled to the inflator.
- the operating head has a locking device.
- a two-stage locking device is provided, which blocks the activation of the operation head, as long as the triggering device is located in at least one of the two locking stages.
- the first locking level is released via a release cable, when the container separated from the submarine in case of rescue and due to the buoyancy in the water drives upwards.
- a triggering cable coupled at its one end to the operating head, which is connected to the submarine at its other end, releases the first blocking stage in the operating head.
- a second locking stage is provided, which is released depending on the momentarily acting on the container from the outside ambient pressure (ie the water pressure when the container is in the water).
- the second locking stage is in the known tripping devices dissolved in particular when the pressure acting on the container from the outside ambient pressure is higher than a predetermined limit pressure. Only with the release of both the first and the second locking stage of the operation head activates the inflator, which then inflates the float.
- the rescue device comprises a lifeboat accommodated in a container attached to the outside of the submarine, which can be inflated by an inflator also arranged in the container.
- the lifeboat is housed in the container, which is internally at atmospheric pressure (ie, about 1 bar), in the uninflated state together with the inflator and a trigger device for the inflator.
- a closed by a lid opening is provided, through which the lifeboat can leave the container in an emergency.
- a mechanism activates the connection of the container to the submarine, whereupon the container, due to buoyancy in the water, drives upwards to the water surface.
- the inflator is activated only if two activation conditions are met simultaneously.
- the first activation condition is when the container has been detached from the submarine, ie when the mechanism for releasing the container has been triggered by the submarine.
- the second activation condition is met when the container is at or near the surface of the water. Compliance with this condition ensures that the lifeboat does not already inflate in deep water.
- the WO 2007/042783 known rescue device via a sensor, which determines whether the container is at or near the water surface.
- the sensor may be either a pressure sensor that senses the pressure (water pressure) of the environment in which the container is currently located. However, it may also be an ultrasonic sensor, which detects the removal of the container to the water surface. Only when both activation conditions are met simultaneously, the container is opened and the inflation process is started. As long as one of the two activation conditions is not met, the activation of the inflator is disabled.
- using a sensor to monitor the second activation condition poses some problems. On the one hand, such sensors are prone to failure and - especially in unfavorable weather conditions and pressure fluctuations - inaccurate. In particular, there is a risk that the inflator will be triggered too early, that is, even in deep water, due to incorrect detection of the ambient pressure by the sensor.
- the invention has for its object to provide a triggering device for an inflator for inflating inflatable floats, which prevents inadvertent and in particular premature activation of the inflator.
- the triggering device is to ensure that the inflator is triggered only at exactly defined activation conditions.
- Claim 15 shows a rescue system for maritime rescue, which comprises a tripping device according to the invention.
- the operating head which activates the inflator, has a mechanical locking device, which is brought by means of a pressure transmission device into its locking position or held in the blocking position when the pressure of the environment in which the container is located is higher than a predetermined limit pressure.
- the inflator When the operation head is in its locked position, the inflator is not activated. Only when the ambient pressure is less than the predetermined limit pressure, the blocking position is released in the operating head and the operating head activates the inflator, which then inflates the inflatable float.
- the instantaneous ambient pressure is present at any time in the interior of the operating head. This can ensure that the operation head instantaneously, ie without any time delays, activates the inflator when the ambient pressure is less than the predetermined limit pressure and that the operation head remains locked until the ambient pressure is less than the limit pressure.
- a rescue system for sea rescue as it can be used in particular in submarines.
- This rescue system comprises a container 70 with a container wall 71.
- the container wall 71 can be a flexible container wall, for example made of a textile or foil material, or a rigid container wall, for example of metal or plastic.
- a not shown here and closed by a lid opening is arranged in the container wall.
- an inflatable float 90, an inflator 60 for inflating the float 90 and a triggering device for activating the inflator 60 is housed.
- the float 90 may be, for example, an inflatable liferaft or an inflatable lifeboat. However, it may also be an inflatable lifejacket or an inflatable buoyancy aid.
- the inflator 60 may be formed by a CO 2 compressed gas cylinder.
- the inflator 60 is connected via a filling hose 80 with the float 90.
- the float 90 is in the container 70 in uninflated and folded folded state.
- Via a connecting piece 81 the inflator 60 is coupled to an operating head 10.
- the operation head 10 in turn is connected via a line 20 with a container feedthrough 30.
- the line 20 may be, for example, a flexible hose or a rigid pipe.
- the container passage 30 is arranged in an opening of the container wall 71 and fixed there in a liquid-tight manner.
- the line 20 is flanged to the inside of the container 70 lying side (b) on the container passage 30.
- the trip cable 50 is coupled to a feedthrough cable 40 inside the container feedthrough 30.
- the feedthrough cable 40 extends through the conduit 20 and terminates in the operation head 10, where the one end of the feedthrough cable 40 is coupled to a locking device disposed in the operation head 10.
- Fig. 6 an alternative embodiment of the tripping device according to the invention is shown, which differs from the in Fig. 1 illustrated embodiment characterized in that on the line 20, which connects the container passage 30 and the operation head 10, a clutch 41 is arranged. About this coupling 41, the line 20 can be separated. At the nozzle 81 of the operation head 10, the connection opening 82 can be seen, at which the filling hose 80 is flanged to connect the inflator 60 with the float 90.
- the operating head 10 comprises a substantially hollow-cylindrical housing 13, to which the connecting piece 81 with a connecting flange 31 adjoins on its front side.
- the bore 82 is provided in the connection flange 31, to which the flange 31 of the filling hose 80 is flanged to connect the operation head 10 with the float 90.
- the cylindrical housing 13 is closed by a lid 32.
- a piston 15 is movably arranged in the housing 13.
- the outer periphery of the piston 15 is sealed with ring seals 33 against the inner surface of the housing 13.
- a needle 34 is attached.
- the needle 34 projects into the hollow cylindrical neck 81 in the rear region.
- the needle 34 is surrounded by a hollow cylindrical spring bush 35.
- an annular support 36 connects.
- An arranged between the outer circumference of the needle 34 and the spring bush 35 ball 37 is supported against the support 36 from.
- a piercing knife 38 is movable arranged, which engages through a provided in the front region of the nozzle bore.
- the piercing knife 38 has at its front end a tip 38 ', which projects into a arranged at the front end of the nozzle 81 transition space 39.
- the formed as a bore in the neck 81 transition space 39 is closed by a membrane 41.
- the inflator 60 is connected, so that the membrane 41 seals the transition space 39 with respect to the inflator 60.
- a spiral spring 42 is arranged, which applies a bias voltage to the piercing knife 38. This bias pushes a formed on the outer periphery of the piercing knife 38 flange 43 against the ball 37 and this in turn against the support 36th
- a transverse bore 44 is introduced.
- a latch 11 is arranged.
- the one end of the feedthrough cable 40 is attached ( Fig. 4 ).
- a pressure plate 45 is arranged with a bolt 11 pointing toward the pin 46.
- a further pressure plate 47 is arranged.
- the restoring force of a spring 48 which is supported against a shoulder 49 of the spring bushing 35 acts.
- the restoring force of the spring 48 pushes the pressure plates 47 and 45 and the piston 15 arranged therebetween to the rear, so that the pin 46 of the rear thrust washer 45 rests against the latch 11 and presses the bolt 11 against the inner wall of the transverse bore 44.
- the container passage 30 comprises a substantially hollow cylindrical housing 1, in which a movable piston 2 is arranged.
- the outer circumference of the piston 2 is sealed off from the inner surface of the housing 1 by sealing rings 22, 31.
- In the piston 2 is a through hole into which a rope ball holder 3 engages.
- the other end of the feedthrough cable 40 is fastened via a screw 9.
- the piston 2 guide pins 49, which engage in guide holes 51 of the housing 1.
- an annular disc 12 and a locking ring 25 are arranged, which secure the piston inside the hollow cylindrical housing 1 against withdrawal.
- the rear end of the rope ball holder 3 is connected to a threaded sleeve 8.
- the inner surface of the hollow cylindrical piston 2 is sealed by seals 23, 24, 29, 32 with respect to the peripheral surface of the cable ball holder 3.
- a trigger cable 21 is coupled via a feeder 52.
- annular opening 26 is provided, via which the fluid of the environment in which the container 70 is located in the interior of the housing 1 of the container passage 30 can flow.
- the container passage 30 is arranged in the container wall 71, that the opening 26 is located outside of the container 70.
- Fig. 3 flanged line 20 which connects the container passage 30 with the operation head 10.
- the feedthrough cable 40 which is connected at its one end to the release cable 21 and at its other end in the interior of the operation head 10 with the latch 11 extends.
- the line 20 is filled with a pressure-transmitting fluid.
- a pressure-transmitting fluid Preferably, a mixture of water and ethylene glycol is used for this purpose.
- the tripping device according to the invention which consists of the container feedthrough 30, the operation head 10 and the line 20 connecting them, functions as follows:
- the Fig. 2-5 each show the initial position of the container passage 30 and the operation head 10, in which the activation of the inflator 60 is locked.
- the feedthrough cable 40 is first pulled out of the line 20 by pulling on the release cable 21.
- the train on the release cable 21 can be triggered, for example, that the container 70 from the submarine, where the container is mounted on the outside, with the other, here in the Fig. 2 and 3 not shown end of the release cable 21 is attached to the submarine.
- the pin 46 of the outer pressure plate 12 is no longer on the latch 11 at.
- the pressure of the environment in which the container 70 is a a.
- the ambient pressure is namely transmitted through the pressure openings 26 into the interior of the container passage 30 on the rear end face of the movable piston 2, on which the annular disc 12 and the retaining ring 25 are arranged.
- the piston 2 is freely movable within the housing 1 of the container passage 30 along a stroke H.
- the position of the movable piston 2 along the stroke H thus depends on the ambient pressure.
- the space of the stroke H is like the line 20 communicating therewith filled with the pressure-transmitting liquid, so that the ambient pressure on the movable piston 2, is transferred to the liquid in the conduit 20.
- the ambient pressure is transmitted in this way in the operation head 10 and there in particular in the transverse bore 44.
- the ambient pressure acts on the outer thrust washer 45 via the liquid standing in the transverse bore 44 as well.
- the outer pressure plate 45 is thereby pressed against the inside of the operation head 10 movable piston 15 and this against the inner pressure plate 47.
- the restoring force of the spring 48 acts in the opposite direction against the inner pressure plate 47.
- the position of the movable piston 15 in the interior of the operating head 10 thus depends on the difference between the force acting on the outer pressure plate 45 by the ambient pressure and the restoring force of the spring 48. Is the force exerted by the ambient pressure on the outer pressure plate 45 force greater than the restoring force of the spring 48 remains the operation head 10 in the in the Fig.
- the piston 15 forms with the pressure plates 45 and, 47, and the spring 48 so that a mechanical locking device which holds the operation head 10 in a locked position in which he can not activate the inflator, as long as the pressure exerted by the ambient pressure on the outer pressure plate 45 Force greater than the restoring force of the spring 48 is.
- the piston 15 moves back to an activation position when the latch 11 is in its release position and when the force exerted by the ambient pressure on the outer pressure plate 45 is less As the restoring force of the spring 48.
- the attached to the piston 15 needle 34 is also pulled backwards. This eliminates the pressure exerted by the flange 43 on the ball 37, which presses the ball 37 against the support 36. In the absence of this pressure against the ball 37, this can migrate inwardly on the ramp formed at the front end of the needle 34 in the direction of the longitudinal axis of the operating head 10.
- the puncturing blade 38 Upon movement of the ball 37 inwardly towards the longitudinal axis of the operation head 10, the puncturing blade 38 can move forward because the flange 43 is no longer abutting the ball 37.
- the biased by the spring 42 piercing knife 38 then moves forward in the direction of the membrane 41 and pierces it with its tip 38 '.
- the gas under pressure in the inflator 60 can enter the space 39 and the space with it in the space 39 Influence connecting bore 82 to flow from there into the flange 31 flanged float 90 and inflate it.
- the tripping device according to the invention is ensured by the transmission of the ambient pressure of the movable in the container bushing 30 piston 2 to the liquid contained in the conduit 20 that inside the operation head of the current ambient pressure acting on the container, is present at any time. This ensures instantaneous activation of the operating head 10 without any time delay when the triggering cable 21 is pulled and when the ambient pressure has become lower than the predetermined limit pressure.
- the limit pressure is determined by the force acting on the movable piston 10 in the operation head 10 restoring force. The limit pressure is thus fixed and it is thereby ensured that the tripping device according to the invention is always activated only at precisely defined conditions and initiates the inflation process.
- the triggering device triggers the inflation only when the triggering cable 21 is pulled and at the same time the ambient pressure is lower than the predetermined limit pressure.
- the tripping device according to the invention can be used not only with the operation head 10 and the inflator 60 shown and described in detail in the above embodiment, but also in connection with all other types of operation heads and inflators.
- the triggering device may also be used in conjunction with an operating head and inflator assembly in which the activating element 38 (e.g., a piercing needle) is located not in the surgical head but in the cylinder valve of the inflator (e.g., a pressurized gas cylinder).
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Air Bags (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Emergency Lowering Means (AREA)
- Burglar Alarm Systems (AREA)
- Pressure Vessels And Lids Thereof (AREA)
Abstract
Description
Die Erfindung betrifft eine Auslösevorrichtung für eine Aufblaseinrichtung zum Aufblasen von aufblasbaren Schwimmkörpern nach dem Oberbegriff des Anspruchs 1.The invention relates to a triggering device for an inflator for inflating inflatable floats according to the preamble of claim 1.
Derartige Auslösevorrichtungen werden beispielsweise in U-Boot-Rettungseinrichtungen verwendet, die einen aufblasbaren Schwimmkörper, wie zum Beispiel eine aufblasbare Rettungsinsel oder ein aufblasbares Schlauchboot, sowie eine zum Aufblasen des Schwimmkörpers vorgesehene Aufblaseinrichtung enthalten. Der zusammengefaltete Schwimmkörper ist dabei in nicht aufgeblasenem Zustand zusammen mit der Aufblaseinrichtung in einem Behälter untergebracht, wobei der Behälter in der Regel eine Behälterwand und eine darin angeordnete Öffnung aufweist, durch die der Schwimmkörper den Behälter verlassen kann. In dem Behälter ist bei diesen Rettungseinrichtungen eine Auslösevorrichtung untergebracht, welche - unter bestimmten, vorgegebenen Rettungsbedingungen - die Aufblaseinrichtung aktiviert und das Aufblasen des Schwimmkörpers einleitet. Die aus dem Stand der Technik bekannten Auslösevorrichtungen umfassen einen Operationskopf, welcher an die Aufblaseinrichtung gekoppelt ist. Um eine Aktivierung der Aufblaseinrichtung durch den Operationskopf nur im Rettungsfall zu gewährleisten und ein unbeabsichtigtes Aufblasen des Schwimmkörpers zu verhindern, wenn sich das U-Boot in großen Wassertiefen befindet, verfügt der Operationskopf über eine Sperreinrichtung. In der Regel ist eine zweistufige Sperreinrichtung vorgesehen, welche die Aktivierung des Operationskopfs sperrt, solange sich die Auslösevorrichtung in wenigstens einer der beiden Sperrstufen befindet. Die erste Sperrstufe wird über ein Auslöseseil gelöst, wenn der Behälter im Rettungsfall vom U-Boot getrennt und aufgrund des Auftriebs im Wasser nach oben treibt. Dabei löst ein an seinem einen Ende an den Operationskopf gekoppeltes Auslöseseil, welches an seinem anderen Ende mit dem U-Boot verbunden ist, die erste Sperrstufe in dem Operationskopf. Um trotz der gelösten ersten Sperrstufe ein Aufblasen des Schwimmkörpers in großen Wassertiefen zu verhindern ist eine zweite Sperrstufe vorgesehen, welche in Abhängigkeit des momentan auf den Behälter von außen einwirkenden Umgebungsdrucks (also des Wasserdrucks, wenn sich der Behälter im Wasser befindet) gelöst wird. Die zweite Sperrstufe wird bei den bekannten Auslösevorrichtungen insbesondere dann gelöst, wenn der auf den Behälter von außen einwirkende Umgebungsdruck höher ist als ein vorgegebener Grenzdruck. Erst mit dem Lösen sowohl der ersten als auch der zweiten Sperrstufe aktiviert der Operationskopf die Aufblaseinrichtung, welche dann den Schwimmkörper aufbläst.Such trip devices are used, for example, in submarine rescue devices that include an inflatable float, such as an inflatable liferaft or an inflatable dinghy, and an inflator provided to inflate the float. The folded float is housed in a non-inflated state together with the inflator in a container, wherein the container usually has a container wall and an opening disposed therein, through which the float can leave the container. In the container a rescue device is housed in these rescue facilities, which - under certain predetermined rescue conditions - activates the inflator and initiates the inflation of the float. The tripping devices known from the prior art comprise an operating head, which is coupled to the inflator. In order to ensure activation of the inflator by the surgical head only in case of rescue and to prevent inadvertent inflation of the float when the submarine is in great water depths, the operating head has a locking device. In general, a two-stage locking device is provided, which blocks the activation of the operation head, as long as the triggering device is located in at least one of the two locking stages. The first locking level is released via a release cable, when the container separated from the submarine in case of rescue and due to the buoyancy in the water drives upwards. In this case, a triggering cable coupled at its one end to the operating head, which is connected to the submarine at its other end, releases the first blocking stage in the operating head. In order to prevent inflation of the floating body in large water depths despite the dissolved first locking stage, a second locking stage is provided, which is released depending on the momentarily acting on the container from the outside ambient pressure (ie the water pressure when the container is in the water). The second locking stage is in the known tripping devices dissolved in particular when the pressure acting on the container from the outside ambient pressure is higher than a predetermined limit pressure. Only with the release of both the first and the second locking stage of the operation head activates the inflator, which then inflates the float.
Aus der
Der Erfindung liegt die Aufgabe zugrunde, eine Auslösevorrichtung für eine Aufblaseinrichtung zum Aufblasen von aufblasbaren Schwimmkörpern bereit zu stellen, welche eine unbeabsichtigte und insbesondere vorzeitige Aktivierung der Aufblaseinrichtung verhindert. Die Auslösevorrichtung soll gewährleisten, dass die Aufblaseinrichtung nur bei exakt definierten Aktivierungsbedingungen ausgelöst wird.The invention has for its object to provide a triggering device for an inflator for inflating inflatable floats, which prevents inadvertent and in particular premature activation of the inflator. The triggering device is to ensure that the inflator is triggered only at exactly defined activation conditions.
Diese Aufgaben werden mit einer Auslösevorrichtung mit den Merkmalen des Anspruchs 1 gelöst. Bevorzugte Ausgestaltungen dieser Auslösevorrichtung sind den Ansprüchen 2-14 zu entnehmen. Anspruch 15 zeigt ein Rettungssystem zur Seenotrettung auf, welches eine erfindungsgemäße Auslösevorrichtung umfasst.These objects are achieved with a triggering device with the features of claim 1. Preferred embodiments of this tripping device are given in claims 2-14.
Nach der Erfindung ist vorgesehen, dass der Operationskopf, welcher die Aufblaseinrichtung aktiviert, über eine mechanische Sperreinrichtung verfügt, die mittels einer Druckübertragungseinrichtung in ihre Sperrposition gebracht bzw. in der Sperrposition gehalten wird, wenn der Druck der Umgebung, in der sich der Behälter befindet, höher als ein vorgegebener Grenzdruck ist. Befindet sich der Operationskopf in seiner Sperrposition wird die Aufblaseinrichtung nicht aktiviert. Erst wenn der Umgebungsdruck kleiner ist als der vorgegebene Grenzdruck, wird die Sperrposition in dem Operationskopf gelöst und der Operationskopf aktiviert die Aufblaseinrichtung, welche daraufhin den aufblasbaren Schwimmkörper aufbläst. Um sicherzustellen, dass die Sperrposition des Operationskopfs nur bei exakt definierten Bedingungen gelöst wird, ist nach der Erfindung vorgesehen, dass der momentane Umgebungsdruck zu jeder Zeit im Inneren des Operationskopfs ansteht. Dadurch kann gewährleistet werden, dass der Operationskopf instantan, d.h. ohne jegliche zeitliche Verzögerungen, die Aufblaseinrichtung aktiviert, sobald der Umgebungsdruck kleiner als der vorgegebene Grenzdruck ist und dass der Operationskopf jedenfalls so lange gesperrt bleibt, bis der Umgebungsdruck kleiner als der Grenzdruck ist.According to the invention, it is provided that the operating head, which activates the inflator, has a mechanical locking device, which is brought by means of a pressure transmission device into its locking position or held in the blocking position when the pressure of the environment in which the container is located is higher than a predetermined limit pressure. When the operation head is in its locked position, the inflator is not activated. Only when the ambient pressure is less than the predetermined limit pressure, the blocking position is released in the operating head and the operating head activates the inflator, which then inflates the inflatable float. In order to ensure that the blocking position of the operating head is only released under precisely defined conditions, it is provided according to the invention that the instantaneous ambient pressure is present at any time in the interior of the operating head. This can ensure that the operation head instantaneously, ie without any time delays, activates the inflator when the ambient pressure is less than the predetermined limit pressure and that the operation head remains locked until the ambient pressure is less than the limit pressure.
Nachfolgend wird die Erfindung anhand eines Ausführungsbeispiels unter Bezugnahme auf die begleitenden Zeichnungen näher erläutert. Die Zeichnungen zeigen:
- Fig. 1:
- Schematische Darstellung eines Rettungssystems zur Seenotrettung, in dem die erfindungsgemäße Auslösevorrichtung zum Einsatz kommen kann;
- Fig. 2:
- Schnittdarstellung der Behälterdurchführung des Rettungssystems von
Fig. 1 ; - Fig. 3:
- Darstellung der Behälterdurchführung von
Fig. 2 , mit daran angeflanschter Leitung zur Verbindung der Behälterdurchführung mit dem Operationskopf des Rettungssystems vonFig. 1 ; - Fig. 4:
- Darstellung des Operationskopfs des Rettungssystems von
Fig. 1 (teilweise im Schnitt); - Fig. 5:
- Schnittdarstellung des Operationskopfs von
Fig. 5 ; - Fig. 6:
- Darstellung der Aufblaseinrichtung des Rettungssystems von
Fig. 1 mit daran gekoppelter Auslösevorrichtung in einer bevorzugten Ausführungsform.
- Fig. 1:
- Schematic representation of a rescue system for maritime rescue, in which the tripping device according to the invention can be used;
- Fig. 2:
- Sectional view of the container passage of the rescue system of
Fig. 1 ; - 3:
- Representation of the container execution of
Fig. 2 , with flanged line for connecting the container passage with the operation head of the rescue system ofFig. 1 ; - 4:
- Representation of the operation head of the rescue system of
Fig. 1 (partly in section); - Fig. 5:
- Sectional view of the operation head of
Fig. 5 ; - Fig. 6:
- Illustration of the inflator of the rescue system of
Fig. 1 with triggering device coupled thereto in a preferred embodiment.
In
In
In den
In dem Deckel 32 ist eine Querbohrung 44 eingebracht. In dieser Querbohrung ist ein Riegel 11 angeordnet. An dem Riegel 11 ist das eine Ende des Durchführungsseils 40 befestigt (
In den
Die erfindungsgemäße Auslösevorrichtung, welche aus der Behälterdurchführung 30, dem Operationskopf 10 und dem diese verbindende Leitung 20 besteht, funktioniert wie folgt:The tripping device according to the invention, which consists of the
Die
Fällt der Umgebungsdruck ab (beispielsweise durch einen Aufstieg des Behälters 70 an die Wasseroberfläche) bewegt sich der Kolben 15 nach hinten in eine Aktivierungsstellung, wenn sich der Riegel 11 in seiner Freigabeposition befindet und wenn die vom Umgebungsdruck auf die äußere Druckscheibe 45 ausgeübte Kraft geringer ist als die Rückstellkraft der Feder 48. Durch die Bewegung des Kolbens 15 in seine Aktivierungsstellung wird die an dem Kolben 15 befestigte Nadel 34 ebenfalls nach hinten gezogen. Dadurch entfällt der vom Flansch 43 auf die Kugel 37 ausgeübte Druck, der die Kugel 37 gegen das Auflager 36 presst. Bei Entfall dieses Drucks gegen die Kugel 37 kann diese auf der am vorderen Ende der Nadel 34 angeformten Rampe nach innen in Richtung der Längsachse des Operationskopfs 10 wandern. Bei einer Bewegung der Kugel 37 nach innen zur Längsachse des Operationskopfs 10 hin, kann sich das Durchstoßmesser 38 nach vorne bewegen, weil der Flansch 43 nicht mehr an der Kugel 37 anliegt. Das durch die Feder 42 unter Vorspannung stehende Durchstoßmesser 38 bewegt sich dann nach vorne in Richtung der Membran 41 und durchstößt diese mit ihrer Spitze 38'. Ist die Membran 41 durchgestoßen, kann das sich in der Aufblaseinrichtung 60 unter Druck befindliche Gas in den Raum 39 und die mit diesem in Verbindung stehende Bohrung 82 einströmen, um von dort in den am Flansch 31 angeflanschten Schwimmkörper 90 zu gelangen und diesen aufzublasen.If the ambient pressure drops (for example, by a rise of the
Bei der erfindungsgemäßen Auslösevorrichtung wird durch die Übertragung des Umgebungsdrucks von dem in der Behälterdurchführung 30 beweglichen Kolben 2 auf die sich in der Leitung 20 befindliche Flüssigkeit gewährleistet, dass im Inneren des Operationskopf der momentane Umgebungsdruck, der auf den Behälter einwirkt, zu jeder Zeit ansteht. Dadurch wird eine instantane Aktivierung des Operationskopfs 10 ohne jegliche zeitliche Verzögerung gewährleistet, wenn das Auslöseseil 21 gezogen ist und wenn der Umgebungsdruck niedriger geworden ist als der vorgegebene Grenzdruck. Der Grenzdruck wird dabei durch die auf den im Operationskopf 10 beweglichen Kolben 15 einwirkende Rückstellkraft bestimmt. Der Grenzdruck ist damit fest eingestellt und es wird dadurch sichergestellt, dass die erfindungsgemäße Auslösevorrichtung immer nur bei genau definierten Bedingungen aktiviert wird und den Aufblasvorgang einleitet. Durch den Mechanismus der erfindungsgemäßen Auslösevorrichtung ist ferner gewährleistet, dass die Auslösevorrichtung den Aufblasvorgang nur dann auslöst, wenn das Auslöseseil 21 gezogen und gleichzeitig der Umgebungsdruck niedriger ist als der vorgegebene Grenzdruck.In the tripping device according to the invention is ensured by the transmission of the ambient pressure of the movable in the
Die erfindungsgemäße Auslösevorrichtung kann nicht nur mit dem in dem obigen Ausführungsbeispiel im Detail gezeigten und beschriebenen Operationskopf 10 und der Aufblaseinrichtung 60 sondern auch in Verbindung mit allen anderen Arten von Operationsköpfen und Aufblaseinrichtungen eingesetzt werden. So kann bspw. die Auslösevorrichtung auch in Verbindung mit einer Anordnung aus einem Operationskopf und einer Aufblaseinrichtung eingesetzt werden, bei dem das Aktivierungselement 38 (z.B. eine Durchstoßnadel) nicht im Operationskopf sondern im Flaschenventil der Aufblaseinrichtung (z.B. einer Druckgasflasche) angeordnet ist.The tripping device according to the invention can be used not only with the
Claims (15)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL10187989T PL2319756T3 (en) | 2009-11-10 | 2010-10-19 | Activation device for an inflation device for inflating inflatable buoyant bodies |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009044479A DE102009044479B3 (en) | 2009-11-10 | 2009-11-10 | Tripping device for an inflator for inflating inflatable floats |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2319756A2 true EP2319756A2 (en) | 2011-05-11 |
EP2319756A3 EP2319756A3 (en) | 2013-07-24 |
EP2319756B1 EP2319756B1 (en) | 2014-06-04 |
Family
ID=43662783
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10187989.8A Active EP2319756B1 (en) | 2009-11-10 | 2010-10-19 | Activation device for an inflation device for inflating inflatable buoyant bodies |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP2319756B1 (en) |
KR (1) | KR101634549B1 (en) |
DE (1) | DE102009044479B3 (en) |
ES (1) | ES2495344T3 (en) |
PL (1) | PL2319756T3 (en) |
PT (1) | PT2319756E (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109367742A (en) * | 2018-11-21 | 2019-02-22 | 航宇救生装备有限公司 | A kind of inflation system separating mechanism |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007042783A1 (en) | 2005-10-11 | 2007-04-19 | Strachan & Henshaw Limited | Assembly for deploying a payload from a submarine |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2130972B (en) * | 1982-06-03 | 1985-09-04 | Josef Elmar Bissig | Rescue apparatus |
-
2009
- 2009-11-10 DE DE102009044479A patent/DE102009044479B3/en not_active Expired - Fee Related
-
2010
- 2010-10-19 KR KR1020100102062A patent/KR101634549B1/en active IP Right Grant
- 2010-10-19 PT PT101879898T patent/PT2319756E/en unknown
- 2010-10-19 ES ES10187989.8T patent/ES2495344T3/en active Active
- 2010-10-19 PL PL10187989T patent/PL2319756T3/en unknown
- 2010-10-19 EP EP10187989.8A patent/EP2319756B1/en active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007042783A1 (en) | 2005-10-11 | 2007-04-19 | Strachan & Henshaw Limited | Assembly for deploying a payload from a submarine |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109367742A (en) * | 2018-11-21 | 2019-02-22 | 航宇救生装备有限公司 | A kind of inflation system separating mechanism |
CN109367742B (en) * | 2018-11-21 | 2023-10-20 | 航宇救生装备有限公司 | Separation mechanism of inflation system |
Also Published As
Publication number | Publication date |
---|---|
KR20140134730A (en) | 2014-11-25 |
PT2319756E (en) | 2014-07-17 |
PL2319756T3 (en) | 2015-01-30 |
DE102009044479B3 (en) | 2011-03-31 |
EP2319756A3 (en) | 2013-07-24 |
KR101634549B1 (en) | 2016-06-29 |
EP2319756B1 (en) | 2014-06-04 |
ES2495344T3 (en) | 2014-09-17 |
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