EP0363575A1 - Vérin pneumatique avec dispositif de verrouillage dans les positions extrêmes, en particulier pour la commande de clapet de fumée - Google Patents

Vérin pneumatique avec dispositif de verrouillage dans les positions extrêmes, en particulier pour la commande de clapet de fumée Download PDF

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Publication number
EP0363575A1
EP0363575A1 EP89112178A EP89112178A EP0363575A1 EP 0363575 A1 EP0363575 A1 EP 0363575A1 EP 89112178 A EP89112178 A EP 89112178A EP 89112178 A EP89112178 A EP 89112178A EP 0363575 A1 EP0363575 A1 EP 0363575A1
Authority
EP
European Patent Office
Prior art keywords
locking
piston
cylinder
air cylinder
piston rod
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
Application number
EP89112178A
Other languages
German (de)
English (en)
Other versions
EP0363575B1 (fr
Inventor
Otto Grasl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
OTTO GRASL Firma
Original Assignee
OTTO GRASL Firma
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by OTTO GRASL Firma filed Critical OTTO GRASL Firma
Priority to YU152389A priority Critical patent/YU48225B/sh
Priority to SI8911523A priority patent/SI8911523B/sl
Priority to DK385289A priority patent/DK172502B1/da
Priority to HU894103A priority patent/HU214169B/hu
Publication of EP0363575A1 publication Critical patent/EP0363575A1/fr
Priority to HR930767A priority patent/HRP930767B1/xx
Application granted granted Critical
Publication of EP0363575B1 publication Critical patent/EP0363575B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/26—Locking mechanisms
    • F15B15/261—Locking mechanisms using positive interengagement, e.g. balls and grooves, for locking in the end positions

Definitions

  • the balls can easily be returned to the groove by the self-displaced locking piston.
  • the end face of the locking piston is expediently provided with a chamfer.
  • the movement of the bolt piston therefore takes place automatically when the associated pressure chamber of the counter-cylinder is acted upon by the pressure medium, since a locking pressure chamber on one side of the locking piston is in a pressure-conducting connection with one of the two cylinder chambers. If, on the other hand, the pressure in this cylinder chamber is reduced, the locking piston moves back automatically into its locked position, for which purpose the locking piston is particularly loaded by a compression spring.
  • this compression spring does not act directly on the balls, which engage in the groove of the piston rod or locking rod, but only displaces the locking piston, which slides on the piston rod or locking rod with little wear and with its sleeve-like section over the balls.
  • Another significant advantage is that the arrangement, in particular of the locking piston in the locking pressure chamber concentric with the piston rod or locking rod, the sleeve-like section of the locking piston enclosing the balls, makes the compressed air cylinder particularly compact, in particular short, without restricting its functionality is possible.
  • the reversing valve includes a spring-loaded cup sleeve, which can establish a connection from a preset pressure between a pressure medium supply and a valve chamber, into which radial bores open.
  • the spring load in particular setting a preload, the limit value of the air pressure can be determined, from which the pressure medium supply to the valve chamber is switched on and the double-stroke cylinder moves into the fully extended end position - alarm position.
  • a compressed air cylinder with end position locking is shown, as it can be designed for example with diameters of 80 mm (Fig. 1 and 2) or 50 mm (Fig. 3 - 6).
  • the diameter specifications are those of the piston 12.
  • the compressed air cylinder essentially consists of a cylinder head 1 and a cylinder base 2, which are connected to one another via a cylinder tube 9.
  • the cylinder head, the cylinder base and the cylinder tube enclose two cylinder spaces 9a and 9b, which are separated from one another by the double-sided piston 12.
  • the piston 12 is fixed between a locking rod 7, which is also referred to as a locking bolt, and a piston rod 10.
  • the locking piston 4 which is the rear or lower locking piston of the compressed air cylinder, is displaceably guided by a rear stop cover 5.
  • the shape of the stop cover is shown in detail in Fig. 6. It has a bore 5a for slidably guiding the rear locking piston 4 and a support surface 5b on which a spring 17 indicated in FIG. 1 can be supported, which pushes the rear locking piston in the direction of the ball sleeve 6a and the balls 11.
  • FIGS. 7-9 differs from that according to the figures discussed above, in particular FIGS. 1 and 2, essentially in that here only one cylinder head 41 with aligned blind holes 61, 62 lying in one plane is equipped, each of which is used optionally for the supply of compressed air and which are both used together to suspend the compressed air cylinder.
  • the cylinder head 41 and a cylinder base 42 are mutually interchangeable, so that the suspension can optionally be carried out on the upper section of the compressed air cylinder, see FIG. 8, or on its lower section according to FIG. 9, depending on where the cylinder head 41 is attached is. It should be noted here that the representations of FIGS. 8 and 9 are rotated by 90 ° about the main longitudinal axis 26 compared to that in FIG. 7.
  • the compressed air supply from the blind hole 61 to a first cylinder space 63 takes place via a channel 64 and play (not shown) on a piston rod 51.
  • the compressed air supply to the bolt pressure chamber 45 also takes place through the play of the piston rod 51.
  • the compressed air-conducting connection between the blind hole 62 and a bolt pressure chamber 46 at the right or lower end of the compressed air cylinder takes place via channels 47, 48 and a space between a cylinder tube 49 and a protective tube 50, which connect the cylinder head and the cylinder base with each other.
  • a second cylinder chamber 65 is in turn fed with compressed air via a play of a locking bar 52.
  • a piston 53 is moved forwards or upwards or backwards or downwards while simultaneously releasing the end lock on a rear locking piston 44 or on a front locking piston 43.
  • connection between the blind hole 62 and a bolt pressure chamber 92 and the second cylinder chamber 65 is the same as described for FIG. 7.
  • the channel 94 leads to a reversing valve 95, which has a cup sleeve 96 on one side is under the adjustable pressure of a spring sleeve 97 and can be supported on a valve seat 114.
  • a spring 98, a threaded pin 99 in a nut 100 are used for pressure adjustment. The threaded pin can be locked by a second nut 101.
  • the double lifting cylinder 132 drives the smoke - And heat flap 134 in a first open position, since the reversing valve 135 prevents a further stroke. Since the pressure-controlled connection valve interrupts the pressure medium line, consisting of sections 143, 144, in this pressure range, the smoke and heat exhaust flap 133 is not actuated. - Only in the event of an alarm, when the pressure on the manual control valve exceeds a predetermined pressure, the connection valve 145 transfers this pressure into the section 144 of the pressure medium line and from there into the lifting cylinder 131, which thus places the smoke and heat exhaust flap 133 in the open alarm position pivots. In addition, the reversing valve 135 on the double-stroke cylinder 132 releases the further alarm stroke of the double-stroke cylinder, which opens the smoke and heat vent flap 134 accordingly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Mechanical Operated Clutches (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Safety Valves (AREA)
  • Lock And Its Accessories (AREA)
  • Preventing Unauthorised Actuation Of Valves (AREA)
  • Multiple-Way Valves (AREA)
EP89112178A 1988-10-13 1989-07-04 Vérin pneumatique avec dispositif de verrouillage dans les positions extrêmes, en particulier pour la commande de clapet de fumée Expired - Lifetime EP0363575B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
YU152389A YU48225B (sh) 1988-10-13 1989-07-31 Pneumatski cilindar sa zabravljivanjem u krajnjem položaju, naročito za pokretanje preklopnih ventila za odvod dimnih gasova
SI8911523A SI8911523B (sl) 1988-10-13 1989-07-31 Pnevmatski cilinder z blokado v skrajni legi, zlasti za aktiviranje dimnične lopute
DK385289A DK172502B1 (da) 1988-10-13 1989-08-07 En med endestillingsblokering forsynet trykluftcylinder, især til aktivering af røgaftræksklapper
HU894103A HU214169B (hu) 1988-10-13 1989-08-10 Véghelyzet-reteszeléssel ellátott pneumatikus henger, különösen füstelvezető csappantyúk működtetéséhez
HR930767A HRP930767B1 (en) 1988-10-13 1993-04-02 A pneumatic actuator with locking means in end positions, especially for actuating smoke extractor flues

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8812882U 1988-10-13
DE8812882U DE8812882U1 (de) 1988-10-13 1988-10-13 Druckluftzylinder mit Endlageverriegelung, insbesondere zur Betätigung von Rauchabzugsklappen

Publications (2)

Publication Number Publication Date
EP0363575A1 true EP0363575A1 (fr) 1990-04-18
EP0363575B1 EP0363575B1 (fr) 1994-09-07

Family

ID=6828832

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89112178A Expired - Lifetime EP0363575B1 (fr) 1988-10-13 1989-07-04 Vérin pneumatique avec dispositif de verrouillage dans les positions extrêmes, en particulier pour la commande de clapet de fumée

Country Status (5)

Country Link
EP (1) EP0363575B1 (fr)
AT (1) ATE111190T1 (fr)
DE (2) DE8812882U1 (fr)
ES (1) ES2060701T3 (fr)
YU (1) YU48225B (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0692640A2 (fr) * 1994-06-14 1996-01-17 V. Kann Rasmussen Industri A/S Dispositif actionné par un fluide sous, pression pour l'ouverture et la fermature d'une lucarne ou d'une trappe
EP0964165A2 (fr) 1998-06-12 1999-12-15 Andreas Grasl Cylindre pneumatique pour l'entrâinement d'un élément réglable
EP1111248A1 (fr) * 1999-12-23 2001-06-27 Climax SA Vérin à point d'arrêt intermédiaire
AT12806U1 (de) * 2011-11-25 2012-12-15 Skardelly Thomas Stellzylinder mit mechanischer ver-/entriegelung
CN117404273A (zh) * 2023-12-14 2024-01-16 扬州鼎驰机械有限公司 一种活塞式空压机

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6071096A (en) * 1997-04-25 2000-06-06 Grasl; Andreas Pneumatic cylinder, in particular for actuating fume extraction valves in fume and heat extraction plants
PL210645B1 (pl) * 2006-01-23 2012-02-29 Rewa Społka Z Ograniczoną Odpowiedzialnością Siłownik pneumatyczno-hydrauliczny z blokadą jego tłoczyska

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3397620A (en) * 1966-10-06 1968-08-20 Milwaukee Cylinder Corp Fluid actuator with annular piston locking means
FR2111869A3 (fr) * 1970-10-27 1972-06-09 Hoerbiger Ventilwerke Ag
FR2280816A1 (fr) * 1974-08-02 1976-02-27 Esser Kg Klaus Cylindre moteur commande par un fluide de pression
DE2906819A1 (de) * 1979-02-22 1980-09-04 Ehp Hugo Krueger Kg Elektrik H Druckgasbetaetigbarer doppel-hubzylinder fuer insbesondere lichtkuppeln
DE2911071A1 (de) * 1979-03-21 1980-09-25 Andexer Rolf Fa Verriegelung fuer kolben von druckmittelzylindern
US4248138A (en) * 1978-09-19 1981-02-03 Baker Cac, Inc. Fail safe locking mechanism for fluid operated valve actuator

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3397620A (en) * 1966-10-06 1968-08-20 Milwaukee Cylinder Corp Fluid actuator with annular piston locking means
FR2111869A3 (fr) * 1970-10-27 1972-06-09 Hoerbiger Ventilwerke Ag
FR2280816A1 (fr) * 1974-08-02 1976-02-27 Esser Kg Klaus Cylindre moteur commande par un fluide de pression
US4248138A (en) * 1978-09-19 1981-02-03 Baker Cac, Inc. Fail safe locking mechanism for fluid operated valve actuator
DE2906819A1 (de) * 1979-02-22 1980-09-04 Ehp Hugo Krueger Kg Elektrik H Druckgasbetaetigbarer doppel-hubzylinder fuer insbesondere lichtkuppeln
DE2911071A1 (de) * 1979-03-21 1980-09-25 Andexer Rolf Fa Verriegelung fuer kolben von druckmittelzylindern

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0692640A2 (fr) * 1994-06-14 1996-01-17 V. Kann Rasmussen Industri A/S Dispositif actionné par un fluide sous, pression pour l'ouverture et la fermature d'une lucarne ou d'une trappe
EP0692640A3 (fr) * 1994-06-14 1997-07-30 Rasmussen Kann Ind As Dispositif actionné par un fluide sous, pression pour l'ouverture et la fermature d'une lucarne ou d'une trappe
EP0964165A2 (fr) 1998-06-12 1999-12-15 Andreas Grasl Cylindre pneumatique pour l'entrâinement d'un élément réglable
DE19826129A1 (de) * 1998-06-12 1999-12-23 Andreas Grasl Druckluftzylinder zur Betätigung eines einstellbaren Elements, insbesondere Rauchabzugsklappe
EP0964165A3 (fr) * 1998-06-12 2000-06-07 Andreas Grasl Cylindre pneumatique pour l'entrâinement d'un élément réglable
DE19826129C2 (de) * 1998-06-12 2000-07-20 Andreas Grasl Druckluftzylinder zur Betätigung eines einstellbaren Elements, insbesondere einer Rauchabzugsklappe
EP1111248A1 (fr) * 1999-12-23 2001-06-27 Climax SA Vérin à point d'arrêt intermédiaire
FR2802985A1 (fr) * 1999-12-23 2001-06-29 Climax S A Verin a point d'arret intermediaire
AT12806U1 (de) * 2011-11-25 2012-12-15 Skardelly Thomas Stellzylinder mit mechanischer ver-/entriegelung
CN117404273A (zh) * 2023-12-14 2024-01-16 扬州鼎驰机械有限公司 一种活塞式空压机
CN117404273B (zh) * 2023-12-14 2024-02-13 扬州鼎驰机械有限公司 一种活塞式空压机

Also Published As

Publication number Publication date
YU152389A (sh) 1992-09-07
ATE111190T1 (de) 1994-09-15
DE58908312D1 (de) 1994-10-13
ES2060701T3 (es) 1994-12-01
YU48225B (sh) 1997-08-22
EP0363575B1 (fr) 1994-09-07
DE8812882U1 (de) 1989-02-16

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