SK33898A3

SK33898A3 - Device for delayed activation of a valve

Info

Publication number: SK33898A3
Application number: SK338-98A
Authority: SK
Inventors: Werner Schmidt
Original assignee: Total Feuerschutz Gmbh
Priority date: 1997-03-13
Filing date: 1998-03-13
Publication date: 1998-10-07
Also published as: EP0864338B1; EP0864338A3; EP0864338A2; DE19710377A1; PL325228A1; HUP9800492A2; DE19710377C2; DE59808212D1; HU9800492D0; SK285103B6; CZ291640B6; HU223850B1; CZ70798A3; PL186271B1; ATE239527T1; HUP9800492A3

Abstract

The delay time is adjustable through an electro-mechanically operated time-delay appliance consists of a motor-driven threaded spindle (16) with a non-rotary threaded nut (17),and a drive pin (18) operating a bolt (21). The delay appliance affects an opening element of the valve by means of a release which has a locking element which is released after the time-delay time has elapsed and operates the opening element. The bolt with the locking element, and the threaded spindle with the threaded nut are contained in a lidded housing (8). The threaded spindle leads through a side wall (10) in the housing and is connected to a motor flange-mounted on the housing. The locking element is joined to the release outside the housing.

Description

ZARIADENIE NA ONESKORENÉ OVLÁDANIE VENTILUDEVICE VALVE DEVICE

Oblasť technikyTechnical field

Vynález sa týka zariadenia na oneskorené ovládanie ventilu, obzvlášť v spojení s hasiacim zariadením, pričom čas oneskorenia je nastaviteľný elektro-mechanicky poháňaným oneskorovacím zariadením, ktoré pozostáva z motoricky ovládaného závitového vretena s neotočnou závitovou maticou, s kolíkom unášača uvádzaným do chodu závorou, kde oneskorovacie zariadenie pôsobí na otvárací element prostredníctvom spúšťacieho zariadenia, pričom na spúšťacom zariadení je usporiadaný blokovací prvok aretovateľný oneskorovacím zariadením, ktorý je po uplynutí doby oneskorenia uvoľnený a tým uvedie do činnosti otvárací prvok.The invention relates to a device for delayed actuation of a valve, in particular in connection with a fire extinguisher, wherein the delay time is adjustable by an electro-mechanically driven delay device comprising a motorized threaded spindle with a non-rotatable threaded nut, with a carrier pin actuated by a bolt; the device acts on the opening element by means of the triggering device, the locking device being arranged on the triggering device, lockable by a delay device, which is released after the delay time and thus actuates the opening element.

Doterajší stav technikyBACKGROUND OF THE INVENTION

Zariadenie tohto druhu je známe z DE 40 05 777 C1 a je súčasťou centrálneho požiarneho hlásiča hasiaceho zariadenia. Týmto zariadením sa má niekoľkokrát zvýšiť zabezpečenie otvorenia ventilu v prípade požiaru po predpísanom čase, a rovnako sa má odvrátiť nebezpečenstvo neočakávaného spustenia v dôsledku napríklad indukcie, výboja, blesku alebo podobne. Bezpečnosť je zaručená Jen vtedy, ak je zariadenie presne podľa predpisu namontované a presne nastavené.A device of this kind is known from DE 40 05 777 C1 and is part of the central fire alarm of the fire extinguisher. This device is intended to increase the opening of the valve several times in the event of a fire after a prescribed time, as well as to avoid the risk of unexpected actuation due to, for example, induction, discharge, lightning or the like. Safety is only guaranteed if the device is installed and adjusted exactly as prescribed.

Vynález spočíva v úlohe vytvoriť zariadenie, ktoré poskytuje uvedené výhody a je podstatne jednoduchšími prostriedkami vyrobiteľné a namontovateľné na mieste určenia.SUMMARY OF THE INVENTION The present invention is based on the object of providing a device which provides the advantages mentioned above and which can be manufactured and assembled on site at a substantially simpler means.

893/B893 / B

Podstata vynálezuSUMMARY OF THE INVENTION

Táto úloha je vyriešená tým, že závora s blokovacím prvkom a závitové vreteno so závitovou maticou sú umiestnené v jednom puzdre s vekom, pričom závitové vreteno prechádza bočnou stenou puzdra a je spojené s motorom prírubovo spojeným s týmto puzdrom, pričom blokovací prvok prechádza zadnou stenou puzdra a tam je spojený so spúšťacím zariadením.This object is achieved by locking the bolt with the locking element and the threaded spindle with the threaded nut in one housing with the lid, the threaded spindle passing through the side wall of the housing and connected to the motor flangedly connected to the housing, the locking element passing through the rear wall of the housing and there is connected to the trigger device.

Týmto opatrením sa dosiahne jednoduché a funkčne spoľahlivé zariadenie, ktoré neustále spĺňa požadované kritériá požiarnej ochrany.This measure provides a simple and functionally reliable device that constantly meets the required fire protection criteria.

Týmto veľmi jednoducho vyrobiteľným zariadením sa dá tým najjednoduchším spôsobom vykonávať dohľad aj kontrola hasiaceho zariadenia. Zariadenie sa dá najjednoduchšími prostriedkami rozšíriť tak, že sa vybaví spínačom na uvedenie motora do činnosti, spínačom na kontrolu polohy závitovej matice, ako aj núdzovým spínačom.By means of this very easy-to-manufacture device, supervision and control of the fire extinguisher can be carried out in the simplest way. The device can be expanded by the simplest means by providing a motor start switch, a thread nut position check switch as well as an emergency switch.

Prehľad obrázkov na výkresochBRIEF DESCRIPTION OF THE DRAWINGS

Podrobnosti a detaily vynálezu, znázornené na výkresoch, budú podrobnejšie opísané v ďalšom opise. Na výkresoch prestavuje: obr. 1 pohľad na otvorené puzdro, obr. 2 rez podľa čiary A-B z obr. 1, obr. 3 podrobné zobrazenie závory v pohľade spredu a pôdoryse, obr. 4 podrobné zobrazenie závitovej matice v dvoch pohľadoch, obr. 5 rez podľa čiary C-D z obr. 2, obr. 6 podrobné zobrazenie blokovacieho prvku, a obr. 7 ďalší pohľad na otvorené puzdro.The details and details of the invention shown in the drawings will be described in more detail below. In the drawings: FIG. 1 shows a view of the open housing, FIG. 2 is a section along line A-B in FIG. 1, FIG. 3 is a detailed front and plan view of the bolt; FIG. 4 shows a detailed view of a threaded nut in two views, FIG. 5 is a section along line C-D of FIG. 2, FIG. 6 shows a detailed illustration of the locking element, and FIG. 7 shows a further view of the open housing.

893/B893 / B

II

Príklad uskutočnenia vynálezuDETAILED DESCRIPTION OF THE INVENTION

Podstatnými znakmi zariadenia 1 podľa vynálezu sú oneskorovacie zariadenie 2, spúšťacie zariadenie 3, otvárací element 4 ventilu 7, blokovací prvok 5 a prevodník sily 6.Essential features of the device 1 according to the invention are the delay device 2, the trigger device 3, the valve opening element 4, the locking element 5 and the force transducer 6.

V puzdre 8, ktoré je uzatvoriteľné vekom 9 prostredníctvom upevňovacieho prvku 12 veka 9, sú usporiadané oneskorovacie zariadenie 2 a blokovací prvok 5. K bočnej stene 10 puzdra 8 je pripojený motor 14 prostredníctvom príruby 15. Príruba 15 a rovnako tak bočná stena 10 puzdra 8 sú opatrené otvormi 34, 35, cez ktoré je vedené závitové vreteno 16. Toto je na jednej strane spojené s motorom 14 a na druhej strane je opatrené závitovou maticou 17 so závitovým otvorom 20 a unášacím kolíkom 18. V bočnej stene 36 puzdra 8 je vynechané vybranie 29, v ktorom je vedený jeden koniec závory oneskorovacieho zariadenia 2. V druhej čelnej ploche závory 21 je vyhotovený otvor 26, do ktorého zapadá vodiaca tyč 27, ktorá je vedená vodiacim otvorom 28 v bočnej stene W puzdra 8. Závora 21 pozostáva z tela závory 21, ktoré má na dolnej strane 48 zahnutú zarážku 23, na ktorú pôsobí unášací kolík 18 závitovej matice 17. Okrem toho je v tele 22 závory 21 vyhotovená pozdĺžna diera 24, cez ktorú prechádza blokovací prvok 5 vytvorený ako čap 30. Jeden koniec čapu 30 je vyvedený von otvorom 37 v zadnej stene puzdra 8. Druhý koniec čapu 30 má zväčšenú čapovú hlavu 31, ktorá je vyhotovená tak, že dolieha na šikmú plochu 25 povrchu 47 závory 21. Ďalej je čapová hlava 31 vložená v ložiskovom otvore 33 vodiacej vačky 32 veka 9. Týmto usporiadaním je vytvorené absolútne bezchybné oneskorovacie zariadenie, ktoré neustále udržiava blokovací prvok 5 vo funkčnom stave. Aby sa blokovací prvok nemohol nechtiac neúmyselne spustiť, je čap 30 opatrený ešte blokovacou podložkou 38 a unášací kolík 18 závitovej matice 17 vybraním 19. V stave pohotovosti zariadenia 1 dolieha vybranie 19 na čap 30, čím sa zabráni, aby blokovací prvok 5 neželane odblokoval spúšťacie zariadenie 3.In the housing 8, which can be closed by the lid 9 by means of the fastening element 12 of the lid 9, a delay device 2 and a locking element 5 are provided. A motor 14 is connected to the side wall 10 of the housing 8 via a flange 15. They are provided with holes 34, 35 through which the threaded spindle 16 is guided. This is connected on one hand to the motor 14 and on the other hand provided with a threaded nut 17 with a threaded hole 20 and a driving pin 18. In the side wall 36 of the housing 8 is omitted a recess 29 in which one end of the latch of the delay device 2 is guided. In the other face of the latch 21, an opening 26 is formed into which a guide rod 27 fits through a guide hole 28 in the side wall W of the housing. a bolt 21 having a bent stop 23 on the lower side 48, on which a driving pin 18 of the thread nut 17 acts. In addition, there is a bolt body 22 in the body 21 has a longitudinal bore 24 through which a locking element 5 formed as a pin 30 passes. One end of the pin 30 is led out through the opening 37 in the rear wall of the housing 8. The other end of the pin 30 has an enlarged pin head 31 which is designed to abut In addition, the pin head 31 is inserted into the bearing bore 33 of the guide cam 32 of the lid 9. This arrangement creates an absolutely faultless delay device that constantly keeps the locking element 5 in working condition. In order to prevent the locking element from accidentally lowering, the pin 30 is further provided with a locking washer 38 and the driving pin 18 of the threaded nut 17 by a recess 19. In the standby state of the device 1, the recess 19 bears against the pin 30. device 3.

893/B893 / B

Na obr. 1 a 2 je oneskorovacie zriadenie 2 zobrazené v stave pohotovosti a teda v blokovanej polohe. V prípade požiaru sa uvedie do činnosti motor 14 neznázorneným centrálnym požiarnym hlásičom, tak že teraz poháňa závitové vreteno 16 závitovej matice 17 uložené v závitovom otvore 20, ktorá sa motorom 14 uvedie do pohybu. Čas oneskorenia sa dá nastaviť na základe stúpania závitov závitového vretena 16 a počtu jeho otáčok. Po uplynutí času oneskorenia unášací kolík 18 dosiahne zarážku 23 závory 21 a a posunie ju rovnako smerom k motoru 14. V dôsledku šikmej plochy 25 závory 21 sa pružinou 39 držaná hlava 31 čapu blokovacieho prvku 5 posunie v smere k veku 9. Potom, ako sa blokovacie pôsobenie unášacieho kolíka 18 zruší, môže sa presunúť aj blokovacia podložka 38. Blokovací prvok 5 sa posunie tak ďaleko, že sa zruší aretovacia sila na páku 40 spúšťacieho zariadenia 3. Pod napätím nastavená pružina 41 pohybuje smerom nahor pákou 40 uloženou na hriadeli 42, tak že sa zruší aj aretačné pôsobenie aretačnej páky 43 na pružinu 45 prevodníka 6_sily. Tým vyvolá pohyb ovládacej tyče 44 otváracieho elementu 4_smerom k otváracej páke 46, ventil 7 sa tým otvorí a začne sa hasiaci proces. Spúšťacie zariadenie 3 môže byť umiestnené v samostatnom puzdre 13, ktoré však spolu s puzdrom 8_oneskorovacieho zariadenia 2 môžu byť spojené do jednej kompaktnej jednotky.In FIG. 1 and 2, the delay device 2 is shown in the ready state and thus in the locked position. In the event of a fire, the motor 14 is actuated by a central fire detector (not shown), so that it now drives the threaded spindle 16 of the threaded nut 17 housed in the threaded bore 20 which is moved by the motor 14. The delay time can be adjusted based on the thread pitch of the threaded spindle 16 and the number of rotations thereof. After the lag time elapses, the driver pin 18 reaches the stop 23 of the bolt 21 and moves it equally towards the motor 14. Due to the inclined surface 25 of the bolt 21, the spring-retained pin 31 of the locking bolt 5 moves towards the lid 9. the action of the driving pin 18 can be canceled, the locking washer 38 can also be moved. The locking element 5 is moved so far that the locking force on the lever 40 of the triggering device 3 is released. The tensioned spring 41 moves upwards by the lever 40 mounted on the shaft 42. This means that the locking action of the locking lever 43 on the spring 45 of the power converter 6 is also canceled. In this way, the control rod 44 moves the opening element 4 towards the opening lever 46, the valve 7 being opened and the extinguishing process started. The trigger device 3 may be housed in a separate housing 13, which, however, together with the housing 8 of the latching device 2, may be connected to a single compact unit.

V puzdrovom priestore 66 sú umiestnené tri spínače 60, 62 a 64 s kontaktmi 61, 63 a 65. Prvý spínač 60 ovláda motor 14, ktorý vypne, keď je ventil 7 otvorený. Páka 40 je spojená s hriadeľom 42, takže sa spolu otáčajú po uvoľnení a presunutí páky 40. Hriadeľ 42 je vedený v otvore 57 puzdra 8 a na konci umiestnenom v puzdre nesie excenter 58, ktorý je spojený s ovládacou pákou 59 uloženou v ložisku 67 a je usporiadaný na zopnutie kontaktu 61 spínača 60. Keď sa páka 40 uvoľní a tým sa uvedie do pohybu hriadeľ 42 s excentrom 58, zruší sa tlak na kontakt 61 Vypínačom 60 dostane motor 14 signál na vypnutie. Ak sa znova zariadenie 1 dostane do pohotovostného stavu a páka 40 sa znova nastaví do polohy pod napätím, zároveň sa do východiskovej polohy dostane rovnako excenter 58 a vypne sa kontakt 61 Tým sa motor 14 znova uvedie do činnosti a závitová matica 17 sa dostane do svojej pohotovostnej polohy. Spínač 62 so svojim kontaktom 63 je usporiadaný tak, žeIn the housing 66 there are three switches 60, 62 and 64 with contacts 61, 63 and 65. The first switch 60 controls the motor 14, which switches off when the valve 7 is open. The lever 40 is coupled to the shaft 42 so that they rotate together when the lever 40 is released and moved. The shaft 42 is guided in the bore 57 of the sleeve 8 and carries an eccentric 58 at the end located in the sleeve. is arranged to close the contact 61 of the switch 60. When the lever 40 is released and thereby moves the shaft 42 with the eccentric 58, the contact pressure 61 is released by the switch 60 the motor 14 receives a trip signal. If the device 1 is again in the standby condition and the lever 40 is reset to the energized position, the eccentric 58 is also returned to the initial position and the contact 61 is switched off. This causes the motor 14 to reactivate and the threaded nut 17 into its standby position. The switch 62 with its contact 63 is arranged such that

893/B kontakt 63 pôsobí na zošikmenie 56 unášacieho kolíka 18 závitovej matice 17. Keď je závitová matica 17 po vypnutí motora 14 mimo svojej pohotovostnej polohy, zopne sa kontakt 63 a spôsobí, že závitová matica 17 sa uvedie do pohybu smerom do svojej pohotovostnej polohy. Keď sa závitová matica 17 vráti do svojej pohotovostnej polohy, kontakt 63 sa uzavrie, a tým sa spínačom 62 motor 14 vypne.893 / B contact 63 acts on bevel 56 of the driving pin 18 of the thread nut 17. When the thread nut 17 is out of its standby position after the engine 14 is switched off, the contact 63 closes and causes the threaded nut 17 to move towards its standby position. . When the threaded nut 17 returns to its stand-by position, the contact 63 closes and the motor 14 is switched off by the switch 62.

Spínač 64 je vytvorený ako núdzový spínač. Kontroluje funkčnosť vypínača 60 príp. funkčnosť závory 21, napríklad či sa nezadrháva, alebo zabraňuje iným rušivým vplyvom. Kontakt 65 je umiestnený na povrchu vybrania 54 závory 21 a uvedie sa do činnosti, keď šikmá plocha 55 dosiahne kontakt. Môže sa tým zabezpečiť spoľahlivá a istá funkcia závory 21 na otváranie ventilu 7, ale aj nastavenie spätnej polohy v prípade obnovenia pohotovosti.The switch 64 is configured as an emergency switch. Checks the operation of the switch 60 resp. the functionality of the bolt 21, for example whether it does not jam or prevents other disturbances. The contact 65 is located on the surface of the recess 54 of the bolt 21 and is actuated when the inclined surface 55 reaches the contact. This can ensure a reliable and certain function of the bolt 21 for opening the valve 7, but also an adjustment of the return position in the event of a readiness to be restored.

Claims

Apparatus for delayed actuation of a valve, in particular in conjunction with a fire extinguisher, wherein the delay time is adjustable by an electromechanical driven delaying device consisting of a motorized threaded spindle with a non-rotatable threaded nut, with a carrier pin actuated by a bolt; an opening element by means of a triggering device, wherein the triggering device is provided with a locking element lockable by a delay device, which is released after the delay time and thus actuates the opening element, characterized in that the bolt (21) with the locking element (5) and threaded the spindle (16) with the threaded nut (17) being located in the housing (8) with the lid (9), the threaded spindle (16) extending through the side wall (10) of the housing (8) and connected to the motor connected to the housing (8) , and the locking element (5) is connected to the trigger device by engaging (3) outside the housing (8).

Apparatus according to claim 1, characterized in that the bolt (21) consists of a body (22) with a curved stop (23) on which the driving pin (18) of the threaded nut (17) acts, in the bolt body (22) a longitudinal bore (24) is provided for receiving a locking element (5) in the form of a pin and has an inclined surface (25) for operating the locking element (5).

Device according to claims 1 and 2, characterized in that the bolt (21) is located on one side in the recess (29) of the housing (8) and is connected to the guide rod (27) on the other side, which is guided in the guide an opening (28) in the side wall (10) of the housing (8).

30,893 / B

X /

Device according to one of Claims 1 to 3, characterized in that the locking element (5) is designed as a pin (30) with a head (31) which is mounted in the lid (9) of the housing (8) and bears on the inclined the surface (25) of the bolt (21).

Device according to claim 4, characterized in that the pin (30) is provided with a locking washer (38).

Device according to one of Claims 1 to 5, characterized in that the drive pin (18) of the threaded nut (17) is provided with a pin (30) of the locking element (5) with a locking recess (19).

Device according to one of Claims 1 to 6, characterized in that the triggering device (3) is housed in a housing (13) which is connected to the housing (8) in one unit.

Apparatus according to claim 7, characterized in that the lowering device (3) consists of a lever (40) mounted on a shaft (42) on which the locking lever (43) is fixed, detecting the spring (45) with the control rod (44). ) of the power converter (6).

Apparatus according to claim 8, characterized in that the shaft (42) is received in an opening (57) of the housing (8).

Device according to claims 7 to 9, characterized in that the control rod (44) is associated with the opening lever (46) of the valve (7).

Apparatus according to claims 1 to 10, characterized in that an eccentric (58) coupled to the control lever (59) for actuating the contacts (61) of the switch (60) is fixed at the end of the shaft (42) encapsulated in the housing (8). , for starting and stopping the engine (14).

30,893 / B

IN

Device according to one of Claims 1 to 10, characterized in that the drive pin (18) is provided on the underside with a bevel (56) associated with the contact (63) of the switch (62) for starting and controlling the movement of the threaded nut (17) .

Device according to claims 1 to 10, characterized in that the side surface (50) of the bolt (21) is provided with an inclined surface (55) forming a recess (54) associated with the emergency switch contact (65).

Apparatus according to claims 11 to 13, characterized in that the switches (60, 62, 64) are located in the housing (66).