EP0076423A1 - Air lock for an enclosure, in particular for a glove-box - Google Patents

Air lock for an enclosure, in particular for a glove-box Download PDF

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Publication number
EP0076423A1
EP0076423A1 EP82108679A EP82108679A EP0076423A1 EP 0076423 A1 EP0076423 A1 EP 0076423A1 EP 82108679 A EP82108679 A EP 82108679A EP 82108679 A EP82108679 A EP 82108679A EP 0076423 A1 EP0076423 A1 EP 0076423A1
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EP
European Patent Office
Prior art keywords
lock
tube
longitudinal axis
locking
inner tube
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
EP82108679A
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German (de)
French (fr)
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EP0076423B1 (en
Inventor
Gerhard Heller
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.)
Alkem GmbH
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Alkem GmbH
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Publication date
Application filed by Alkem GmbH filed Critical Alkem GmbH
Publication of EP0076423A1 publication Critical patent/EP0076423A1/en
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Publication of EP0076423B1 publication Critical patent/EP0076423B1/en
Expired legal-status Critical Current

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    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F7/00—Shielded cells or rooms
    • G21F7/04—Shielded glove-boxes
    • G21F7/047—Shielded passages; Closing or transferring means between glove-boxes

Definitions

  • the invention relates to a lock for a housing, in particular a glove box, which has an outer tube with a circular cross-section for attachment in a housing opening and a lock door with a locking device at both tube ends.
  • Such a lock is already used on glove boxes for processing plutonium, which is toxic and radioactive.
  • This lock is a so-called throwing lock with tightly closing lock doors attached to the pipe ends of the outer pipe, the locking devices of which can only be opened alternately.
  • Text locking devices work electromechanically.
  • the lock has its own supply air and its own exhaust air connection, which prevents the deposition of toxic and radioactive particles in the lock. If both lock doors are closed or the lock door leading into the glove box is closed and the lock door leading to the outside is open during a lock-in process, supply air from the supply air connection must always flow through the lock interior to the exhaust air connection, while it is closed when the lock door leading to the outside and open the glove box leading lock door is sufficient if supply air can flow from the supply air connection through the lock interior into the interior of the glove box, since the glove box also has its own closed air and its own exhaust air connection is provided.
  • the invention has for its object to remedy this situation and to provide a lock that can be operated more trouble-free.
  • a lock of the type mentioned is characterized according to the invention in that in the outer tube against this outer tube about the tube longitudinal axis is coaxially arranged an inner tube with a circular cross-section, at both ends of which the lock door is hinged that. at each outer tube end a locking body for locking the lock door located there is attached in the closed position and that both locking bodies are at such an angular distance from one another with respect to the tube longitudinal axis that the one lock door is locked by the locking body assigned to it in an angular position of the inner tube with respect to the tube longitudinal axis in which the other lock door is released by the locking body assigned to it.
  • the locking bodies are assigned to the locking devices.
  • an outer tube 2 of a lock which can be located both inside the housing of a glove box and on the outside of the housing of a glove box.
  • This outer tube 2- has a circular cross-section and a tube longitudinal axis 3.
  • an inner tube 4 is also coaxially arranged with a circular cross-section, which protrudes from the outer tube 2 and at the end with the help of a hinge 5 a lock door 6 for closing the tube end of the Inner tube 4 is hinged.
  • This lock door 6 fits onto the opening at the tube end of the inner tube 4. It forms on its inside a coaxial cylindrical step 7 which engages in a coaxial hollow cylindrical counter body 8 which is closed at one end by a base 8a.
  • the counter body 8 On the inside of the base 8a, the counter body 8 has a coaxial pin 9 which passes through the lock door 6 to the outside of the lock door 6 takes hold.
  • a door lever 10 At the end of the pin 9 located on the outside of the lock door 6 there is a door lever 10 which can be rotated about an axis of rotation 11 which intersects the longitudinal axis 3 of the tube at an angle of 90 °.
  • One lever arm of the door lever 10 is a handle 10a, while the other lever arm forms at its end a profiled edge 12 which engages on the jacket of a metal cylinder 13 which is welded to a strip-shaped metal slide 14 with a cylinder axis parallel to the axis of rotation 11 of the door lever 10, which also belongs to the locking device of the lock door 6 and is mounted in its own longitudinal direction vertically to the axis of rotation 11 and to the longitudinal axis of the pin 9 on the outside of the door 6.
  • this metal slide 14 through which the pin 9 engages in an elongated hole 18 extending transversely to the pipe longitudinal axis 3, is held by means of a screw 15, which likewise engages through an elongated hole 19 in the metal slider 14 extending transversely to the pipe longitudinal axis 3.
  • the door lever 10 pulls the counter body 8 against the step 7 on the inside of the lock door 6, so that the rubber hose 6 against the outside of the counter body 8, the inside of the lock door 6 and the inside of the Inner tube 4 is squeezed and thereby closes the inner tube 4 gas-tight.
  • the door lever 10a can be fully rotated through 180 ° about the axis 11. Not only is the metal slide 14 on the lock door 6 pushed radially outward, but also the counter body 8 is released from the step 7 on the inside of the lock door 6, so that the rubber hose 16 is no longer squeezed together and the lock door 6 can be opened .
  • a pipe socket 23 serving as a supply air connection, which engages on the inside of the jacket of the outer tube 2 in an elongated hole 30 which is located in the jacket of the inner tube 4 and is vertical to the longitudinal axis 3 of the tube.
  • a pipe socket 23 serving as a supply air connection, which engages on the inside of the jacket of the outer tube 2 in an elongated hole 30 which is located in the jacket of the inner tube 4 and is vertical to the longitudinal axis 3 of the tube.
  • a pipe socket 23 serving as a supply air connection, which engages on the inside of the jacket of the outer tube 2 in an elongated hole 30 which is located in the jacket of the inner tube 4 and is vertical to the longitudinal axis 3 of the tube.
  • On the outside of the Sheath of the outer tube 2 is also a nozzle as an exhaust port, which forms an opening 25 in the jacket of the outer tube 2, which is assigned to a passage 24 for exhaust air in the jacket of the inner tube 4.
  • a hand lever 26 is attached, with which the inner tube 4 can be rotated relative to the outer tube 2 about the tube longitudinal axis 3.
  • the angle of rotation is limited by the angular distance between the two ends of the elongated hole 30 in the jacket of the inner tube 4 with respect to the longitudinal axis 3 of the tube.
  • This angular distance is dimensioned such that in the one end position of the possible rotational movement of the inner tube 4 about the tube longitudinal axis 3, a sliding movement of the metal slide 14a on the one lock door 6a is blocked radially outwards by the locking body 17a fastened to the outer tube 2, while in the other end position the possible rotational movement of the inner tube 4 about the tube longitudinal axis 3, a sliding movement of the metal slide 14b on the other lock door 6b is blocked radially outward by the locking body 17b on the outer tube 2 is.
  • each of the locking bodies 17a and 17b only releases a displacement of the associated metal slide 14a or 14b radially outward on the lock door 6a or 6b when the inner tube 4 with respect to the outer tube 2 in one of the two through the ends of the elongated hole 30 in the jacket of the inner tube 4 certain end positions about the tube longitudinal axis 3 has been rotated.
  • the inner tube 4 is rotated with the hand lever 26 into the end position about the tube longitudinal axis 3, in which the lock door 6b on the outside of the glove box 21 can be opened, while the lock door 6a on the Inside of the glove box 21 is locked in its closed position by the locking body 17a.
  • the lock door 6b is opened and the insertion part 22 is introduced into the lock, ie into the inner tube 4.
  • the path 27 of the supply air runs through the pipe socket 23, through the lock ie through the interior of the inner tube 4 and through the passage 24 for exhaust air in the jacket of the inner tube 4 and through the mouth opening 25, which with implementation 24 flees.
  • the metal slide 14b on the lock door 6b on the outside of the glove box 21 is blocked by the locking body 17b, while the metal slide 14a on the lock door 6a on the inside of the glove box 21 is released by the locking body 17a.
  • the lock door 6a on the inside of the glove box 21 can be opened and the lock part 22 of the lock d.
  • H. can be taken from the interior of the inner tube 4.
  • the path 27 of the supply air runs through the supply air connection 23 into the lock d in this phase of the sluicing process. H.
  • the lock door 6a on the inside of the glove box 21 is closed again.
  • the inner tube 4 is then rotated back about the longitudinal axis 3 of the tube into the first end position, in which, according to FIG. 5, the locking body 17a again the locks Door 6a on the inside of the glove box 21 locks in its closed position and the locking body 17b releases the lock door 6b on the outside of the glove box 21 and in which the passage 24 for exhaust air in the jacket of the inner tube 4 is again aligned with the opening 25 on the jacket of the outer tube 2 , so that the path of the supply air 27 through the lock ie the interior of the inner tube 4 again through the mouth opening 25.

Abstract

1. An air-lock for an enclosure, in particular a glove-box, which has an outer pipe with a circular cross-section for attachment in an enclosure opening, and respective air-lock doors with locking devices at both pipe ends, characterized in that, in the outer pipe (2), there is coaxially arranged against the outer pipe (2) an inner pipe (4) which can be rotated about the longitudinal axis (3) of the pipe and which likewise has a circular cross-section and to each end of which the respective air-lock door (6) is hinged ; that, at each end of the outer pipe, there is arranged a locking member (17) for locking the air-lock door (6) which is present there, in the closed position ; and that both locking members (17) have such an angular interval from one another with respect to the longitudinal axis of the pipe (3), that the one air-lock door (6) is locked by the locking member (17) which is assigned thereto in a rotation-angle position of the inner pipe (4) in relation to the longitudinal axis of the pipe (3), in which the other air-lock door (6) is released by the locking member (17) which is assigned thereto.

Description

Die Erfindung betrifft eine Schleuse für ein Gehäuse, insbesondere eines Handschuhkastens, die ein Außenrohr mit kreisrundem Querschnitt zum Anbringen in einer Gehäuseöffnung und an beiden Rohrenden je eine Schleusentür mit einer Verriegelungsvorrichtung aufweist.The invention relates to a lock for a housing, in particular a glove box, which has an outer tube with a circular cross-section for attachment in a housing opening and a lock door with a locking device at both tube ends.

Eine derartige Schleuse wird bereits an Handschuhkästen zum Verarbeiten von Plutonium eingesetzt, welches toxisch und radioaktiv ist. Diese Schleuse ist eine sogenannte Wurfschleuse mit an den Rohrenden des Außenrohres angebrachten, dicht schließenden Schleusentüren, deren Verriegelungsvorrichtungen nur wechselseitig zu öffnen sind. piese Verriegelungsvorrichtungen arbeiten elektromechanisch.Such a lock is already used on glove boxes for processing plutonium, which is toxic and radioactive. This lock is a so-called throwing lock with tightly closing lock doors attached to the pipe ends of the outer pipe, the locking devices of which can only be opened alternately. piese locking devices work electromechanically.

Ferner weist die Schleuse einen eigenen Zuluft- und einen eigenen Abluftanschluß auf, wodurch die Ablagerung von toxischen und radioaktiven Partikeln in der Schleuse verhindert wird. Sind während eines Einschleusvorgangs beide Schleusentüren verschlossen oder die in den Handschuhkasten führende Schleusentür verschlossen und die nach außen führende Schleusentür geöffnet, so muß stets Zuluft aus dem Zuluftanschluß durch das Schleuseninnere hindurch zum Abluftanschluß strömen können, während es bei geschlossener nach außen führender Schleusentür und geöffneter in den Handschuhkasten führender Schleusentür genügt, wenn Zuluft aus dem Zuluftanschluß durch das Schleuseninnere hindurch in den Innenraum des Handschuhkastens strömen kann, da auch der Handschuhkasten mit einem eigenen Zuluft- und einem eigenen Abluftanschluß versehen ist.Furthermore, the lock has its own supply air and its own exhaust air connection, which prevents the deposition of toxic and radioactive particles in the lock. If both lock doors are closed or the lock door leading into the glove box is closed and the lock door leading to the outside is open during a lock-in process, supply air from the supply air connection must always flow through the lock interior to the exhaust air connection, while it is closed when the lock door leading to the outside and open the glove box leading lock door is sufficient if supply air can flow from the supply air connection through the lock interior into the interior of the glove box, since the glove box also has its own closed air and its own exhaust air connection is provided.

Das hieraus resultierende Zusammenspiel von Klinken und Riegeln an den Schleusentüren und an Abluftschiebern der Schleuse mit zugeordneten Elektromagneten und elektrischen Endschaltern ist die Ursache dafür, daß die Schleuse bei-im Einsatz befindlichen Handschuhkasten nicht ausreichend störungsfrei betrieben werden kann, wodurch insbesondere auch hohe Wartungskosten verursacht werden.The resulting interplay of pawls and bolts on the lock doors and on exhaust air slides of the lock with assigned electromagnets and electrical limit switches is the reason why the lock cannot be operated sufficiently trouble-free when the glove box is in use, which in particular also causes high maintenance costs .

Der Erfindung liegt die Aufgabe zugrunde, hier Abhilfe zu schaffen und eine Schleuse anzugeben, die störungsfreier betrieben werden kann.The invention has for its object to remedy this situation and to provide a lock that can be operated more trouble-free.

Zur Lösung dieser Aufgabe ist eine Schleuse der eingangs erwähnten Art erfindungsgemäß dadurch gekennzeichnet, daß in dem Außenrohr gegen dieses Außenrohr um die Rohrlängsachse verdrehbar koaxial ein Innenrohr mit ebenfalls kreisrundem Querschnitt angeordnet ist, an dessen beiden Enden jeweils die Schleusentür anscharniert ist, daß. an jedem Außenrohrende ein Sperrkörper zum Sperren der dort befindlichen Schleusentür in Verschlußstellung angebracht ist und daß beide Sperrkörper voneinander einen solchen Winkelabstand bezüglich der Rohrlängsachse haben, daß die eine Schleusentür durch den ihr zugeordneten Sperrkörper in einer Drehwinkelposition des Innenrohres bezüglich der Rohrlängsachse gesperrt ist, in der die andere Schleusentür von dem ihr zugeordneten Sperrkörper freigegeben ist.To solve this problem, a lock of the type mentioned is characterized according to the invention in that in the outer tube against this outer tube about the tube longitudinal axis is coaxially arranged an inner tube with a circular cross-section, at both ends of which the lock door is hinged that. at each outer tube end a locking body for locking the lock door located there is attached in the closed position and that both locking bodies are at such an angular distance from one another with respect to the tube longitudinal axis that the one lock door is locked by the locking body assigned to it in an angular position of the inner tube with respect to the tube longitudinal axis in which the other lock door is released by the locking body assigned to it.

An dieser Schleuse wird das wechselseitige Sperren der Schleusentüren durch rein mechanische Mittel bewirkt, die praktisch keinen Störanfälligkeiten unterliegen.At this lock, the mutual locking of the lock doors is effected by purely mechanical means which are practically not susceptible to faults.

Günstig ist es, wenn die Sperrkörper den Verriegelungsvorrichtungen zugeordnet sind.It is expedient if the locking bodies are assigned to the locking devices.

Die Erfindung und ihre Vorteile seien anhand der Zeichnung an einem Ausführungsbeispiel näher erläutert:

  • Fig. 1 zeigt im Längsschnitt eine Schleusentür an einem Ende einer erfindungsgemäßen Schleuse.
  • Fig. 2 bis 5 zeigen stark schematisiert im Längsschnitt eine erfindungsgemäße Schleuse mit Schleusentüren entsprechend
  • Fig. 1 während vier verschiedener Phasen eines Einschleusvorganges an einem Handschuhkasten.
The invention and its advantages are explained in more detail with reference to the drawing using an exemplary embodiment:
  • Fig. 1 shows in longitudinal section a lock door at one end of a lock according to the invention.
  • 2 to 5 show a highly schematic longitudinal section of a lock according to the invention with lock doors accordingly
  • Fig. 1 during four different phases of a sluicing process on a glove box.

In Fig. 1 ist ein Ende eines Außenrohres 2 einer Schleuse dargestellt, das sich sowohl innen im Gehäuse eines Handschuhkastens als auch außen am Gehäuse eines Handschuhkastens befinden kann. Dieses Außenrohr 2-hat einen kreisrunden Querschnitt und eine Rohrlängsachse 3. Im Außenrohr 2 ist koaxial ein Innenrohr 4 mit ebenfalls kreisrundem Querschnitt angeordnet, welches aus dem Außenrohr 2 herausragt und an dessen Ende mit Hilfe eines Scharniers 5 eine Schleusentür 6 zum Verschließen des Rohrendes des Innenrohres 4 anscharniert ist. Diese Schleusentür 6 paßt auf die Öffnung am Rohrende des Innenrohres 4. Sie bildet auf ihrer Innenseite eine koaxiale zylinderförmige Abstufung 7, die in einen koaxialen hohlzylinderförmigen, an einem Ende mit einem Boden 8a verschlossenen Gegenkörper 8 greift.In Fig. 1, one end of an outer tube 2 of a lock is shown, which can be located both inside the housing of a glove box and on the outside of the housing of a glove box. This outer tube 2-has a circular cross-section and a tube longitudinal axis 3. In the outer tube 2, an inner tube 4 is also coaxially arranged with a circular cross-section, which protrudes from the outer tube 2 and at the end with the help of a hinge 5 a lock door 6 for closing the tube end of the Inner tube 4 is hinged. This lock door 6 fits onto the opening at the tube end of the inner tube 4. It forms on its inside a coaxial cylindrical step 7 which engages in a coaxial hollow cylindrical counter body 8 which is closed at one end by a base 8a.

Der Mantel dieses zur Verriegelungsvorrichtung der Schleusentür 6 gehörenden Gegenkörpers 8 verjüngt sich auf der Außenseite kegelstumpfartig in Richtung zur Schleusentür 6. Auf der Innenseite des Bodens 8a weist der Gegenkörper 8 einen koaxialen Zapfen 9 auf, der durch die Schleusentür 6 hindurch auf die Außenseite der Schleusentür 6 greift. Am auf der Außenseite der Schleusentür 6 befindlichen Ende des Zapfens 9 ist ein Türhebel 10 angebracht, der um eine die Rohrlängsachse 3 unter einem Winkel von 90° schneidende Drehachse 11 drehbar ist.The jacket of this counter body 8, which belongs to the locking device of the lock door 6, tapers on the outside in the manner of a truncated cone in the direction of the lock door 6. On the inside of the base 8a, the counter body 8 has a coaxial pin 9 which passes through the lock door 6 to the outside of the lock door 6 takes hold. At the end of the pin 9 located on the outside of the lock door 6 there is a door lever 10 which can be rotated about an axis of rotation 11 which intersects the longitudinal axis 3 of the tube at an angle of 90 °.

Der eine Hebelarm des Türhebels 10 ist ein Handgriff 10a, während der andere Hebelarm an seinem Ende eine profilierte Kante 12 bildet, die am Mantel eines Metallzylinders 13 angreift, welcher mit zur Drehachse 11 des Türhebels 10 paralleler Zylinderachse an einem streifenförmigen Metallschieber 14 festgeschweißt ist, der ebenfalls zur Verriegelungsvorrichtung der Schleusentür 6 gehört und in seiner eigenen Längsrichtung vertikal zur Drehachse 11 und zur Längsachse des Zapfens 9 verschiebbar an der Außenseite der Tür 6 angebracht ist. Dort ist dieser Metallschieber 14, durch den der Zapfen 9 in einem quer zur Rohrlängsachse 3 verlaufenden Langloch 18 greift, mittels einer Schraube 15 gehalten, die ebenfalls durch ein quer zur Rohrlängsachse 3 verlaufendes Langloch 19 im Metallschieber 14 greift.One lever arm of the door lever 10 is a handle 10a, while the other lever arm forms at its end a profiled edge 12 which engages on the jacket of a metal cylinder 13 which is welded to a strip-shaped metal slide 14 with a cylinder axis parallel to the axis of rotation 11 of the door lever 10, which also belongs to the locking device of the lock door 6 and is mounted in its own longitudinal direction vertically to the axis of rotation 11 and to the longitudinal axis of the pin 9 on the outside of the door 6. There, this metal slide 14, through which the pin 9 engages in an elongated hole 18 extending transversely to the pipe longitudinal axis 3, is held by means of a screw 15, which likewise engages through an elongated hole 19 in the metal slider 14 extending transversely to the pipe longitudinal axis 3.

Außen am sich verjüngenden Teil des Mantels des Gegenteiles 8 sitzt zwischen dem Gegenkörper 8 und der ,Schleusentür 6 ein ringförmiger Gummischlauch 16, während auf der Außenseite des Mantels des Rohres 2 ein Sperrkörper 17 angebracht ist, der dem Metallschieber 14 und damit der Verriegelungsvorrichtung der Schleusentür 6 zugeordnet ist.Outside on the tapered part of the jacket of the opposite 8 sits between the counter body 8 and the lock door 6, an annular rubber tube 16, while on the outside of the jacket of the tube 2, a locking body 17 is attached, the metal slide 14 and thus the locking device of the lock door 6 is assigned.

In der in Fig. 1 dargestellten Verschlußstellung der Schleusentür 6 zieht der Türhebel 10 den Gegenkörper 8 gegen die Abstufung 7 auf der Innenseite der Schleusentür 6, so daß der Gummischlauch 6 gegen die Außenseite des Gegenkörpers 8, die Innenseite der Schleusentür 6 und die Innenseite des Innenrohres 4 gequetscht wird und dadurch das Innenrohr 4 gasdicht verschließt.In the closed position of the lock door 6 shown in Fig. 1, the door lever 10 pulls the counter body 8 against the step 7 on the inside of the lock door 6, so that the rubber hose 6 against the outside of the counter body 8, the inside of the lock door 6 and the inside of the Inner tube 4 is squeezed and thereby closes the inner tube 4 gas-tight.

Befindet sich der Sperrkörper 17 gegenüber dem Scharnier 5, so würde eine Entriegelungsdrehung des Türhebels 10 um die Achse 11 begrenzt werden, da der Metallschieber 14 durch diese Drehung gegen den Sperrkörper 17 geschoben wird.If the locking body 17 is located opposite the hinge 5, an unlocking rotation of the door lever 10 about the axis 11 would be limited, since the metal slide 14 is pushed against the locking body 17 by this rotation becomes.

Wird hingegen das Innenrohr 4 um die Rohrlängsachse 3 soweit gedreht, daß sich der Sperrkörper 17 nicht mehr gegenüber dem Scharnier 5 befindet, so kann der Türhebel 10a voll um 180° um die Achse 11 gedreht werden. Hierbei wird nicht nur der Metallschieber 14 an der Schleusentür 6 radial nach außen geschoben, sondern auch der Gegenkörper 8 wird von der Abstufung 7 auf der Innenseite der Schleusentür 6 gelöst, so daß der Gummischlauch 16 nicht mehr zusammengequetscht wird und die Schleusentür 6 geöffnet werden kann.If, on the other hand, the inner tube 4 is rotated about the tube longitudinal axis 3 to such an extent that the locking body 17 is no longer opposite the hinge 5, the door lever 10a can be fully rotated through 180 ° about the axis 11. Not only is the metal slide 14 on the lock door 6 pushed radially outward, but also the counter body 8 is released from the step 7 on the inside of the lock door 6, so that the rubber hose 16 is no longer squeezed together and the lock door 6 can be opened .

In den Fig. 2 bis 5, die das Einschleusen eines Einschleusteiles 22 von außen durch eine Schleuse in einen Handschuhkasten 21 verdeutlichen und in denen gleiche Teile mit den gleichen Bezugszeichen wie in Fig. 1 versehen sind, ist jeweils ein Längsschnitt durch die Schleuse mit dem Außenrohr 2 und dem Innenrohr 4 sowie mit Schleusentüren entsprechend Fig. 1 dargestellt, die mit dem,Außenrohr 2 in einer Öffnung eines strichpunktiert angedeuteten Gehäuseses eines Hähdschuhkastens 21 sitzt. Links von dem Längsschnitt durch die Schleuse ist jeweils eine Draufsicht auf die auf der Innenseite des Handschuhkastens 21 befindliche Schleusentür 6a mit dem Metallschieber 14a und dem Sperrkörper 17a dargestellt, während rechts vom Längsschnitt durch die Schleuse jeweils eine Draufsicht auf die auf der Außenseite des Handschuhkastens 21 befindliche Schleusentür 6b mit dem Metallschieber 14b und dem Sperrkörper 17b abgebildet ist.2 to 5, which illustrate the introduction of an insertion part 22 from the outside through a lock into a glove box 21 and in which the same parts are provided with the same reference numerals as in FIG. 1, a longitudinal section through the lock with the Outer tube 2 and the inner tube 4 as well as with lock doors shown in FIG. 1, which sits with the outer tube 2 in an opening of a dash-dotted housing of a Hühdschuhkastens 21. To the left of the longitudinal section through the lock is a top view of the lock door 6a located on the inside of the glove box 21 with the metal slide 14a and the locking body 17a, while to the right of the longitudinal section through the lock is a top view of the one on the outside of the glove box 21 located lock door 6b is shown with the metal slide 14b and the locking body 17b.

Im Mantel des Außenrohres 2 der Schleuse sitzt ein als Zuluftanschluß dienender Rohrstutzen 23, der auf der Mantelinnenseite des Außenrohres 2 in ein Langloch 30 greift, welches sich im Mantel des Innenrohres 4 befindet und zur Rohrlängsachse 3 vertikal ist. Auf der Außenseite des Mantels des Außenrohres 2 befindet sich ferner ein Stutzen als Abluftanschluß, welcher eine Mündungsöffnung 25 im Mantel des Außenrohres 2 bildet, der einer Durchführung 24 für Abluft im Mantel des Innenrohres 4 zugeordnet ist.In the jacket of the outer tube 2 of the lock sits a pipe socket 23 serving as a supply air connection, which engages on the inside of the jacket of the outer tube 2 in an elongated hole 30 which is located in the jacket of the inner tube 4 and is vertical to the longitudinal axis 3 of the tube. On the outside of the Sheath of the outer tube 2 is also a nozzle as an exhaust port, which forms an opening 25 in the jacket of the outer tube 2, which is assigned to a passage 24 for exhaust air in the jacket of the inner tube 4.

In den Fig. 2 bis 5 ist ferner gestrichelt der Verlauf 27 des durch den Rohrstutzen 23 eintretenden Zuluftstromes durch die Schleuse angedeutet. Zwischen der Außenseite des Mantels des Innenrohres 4 und der Innenseite des Mantels des Außenrohres 2 sind noch zwei Dichtungsringe 28 und 29 derart angeordnet, daß sie sich jeweils in einer zur Rohrlängsachse 3 vertikalen Ebene befinden und daß der als Zuluftanschluß dienende Stutzen 23 und der die Mündungsöffnung 25 bildende Stutzen einschließlich dem Langloch 30 und der Durchführung 24 für Abluft im Mantel des Innenrohres 4 zwischen diesen beiden Dichtungsringen 28 und 29 angeordnet sind.2 to 5, the course 27 of the incoming air flow entering through the pipe socket 23 through the lock is also shown in broken lines. Between the outside of the jacket of the inner tube 4 and the inside of the jacket of the outer tube 2, two sealing rings 28 and 29 are arranged such that they are each in a vertical plane to the pipe axis 3 and that the serving as a supply air connection piece 23 and the mouth opening 25 connecting pieces including the slot 30 and the passage 24 for exhaust air in the jacket of the inner tube 4 between these two sealing rings 28 and 29 are arranged.

Außerhalb des Handschuhkastens 21 ist auf der Außenseite des aus dem Außenrohr 2 herausragenden Mantels des Innenrohres 4 ein Handhebel 26 angebracht, mit dem das Innenrohr 4 relativ zum Außenrohr 2 um die Rohrlängsachse 3 verdreht werden kann. Der Drehwinkel ist durch den Winkelabstand begrenzt, den die beiden Enden des Langloches 30 im Mantel des Innenrohres 4 bezüglich der Rohrlängsachse 3 haben. Dieser Winkelabstand ist so bemessen, daß in der einen Endlage der möglichen Drehbewegung des Innenrohres 4 um die Rohrlängsachse 3 eine Verschiebebewegung des Metallschiebers 14a auf der einen Schleusentür 6a radial nach außen durch den am Außenrohr 2 befestigten Sperrkörper 17a gesperrt ist, während in der anderen Endlage der möglichen Drehbewegung des Innenrohres 4 um die Rohrlängsachse 3 eine Verschiebebewegung des Metallschiebers 14b auf der anderen Schleusentür 6b radial nach außen durch den Sperrkörper 17b am Außenrohr 2 gesperrt ist. Es ist günstig, wenn der Winkelabstand der Enden des Langloches 30 bezüglich der Rohrlängsachse 3 und die beispielsweise jeweils 180° betragenden Winkelabstände zwischen den Sperrkörpern 17a und 17b und zwischen den Metallschiebern 14a und 14b an den Schleusentüren 6a und 6b bezüglich der Rohrlängsachse 3 so aufeinander abgestimmt sind, daß jeder der Sperrkörper 17a und 17b eine Verschiebung des ihm zugeordneten Metallschiebers 14a bzw. 14b radial nach außen an der Schleusentür 6a bzw. 6b nur dann freigibt, wenn das Innenrohr 4 bezüglich dem Außenrohr 2 in eine der beiden durch die Enden des Langloches 30 im Mantel des Innenrohres 4 bestimmten Endstellungen um die Rohrlängsachse 3 gedreht worden ist. Hierdurch ist gewährleistet, daß jeweils nur eine der beiden Schleusentüren 6a und 6b geöffnet werden kann, während die andere Schleusentür in ihrer Verschlußstellung gesperrt ist. Sind andererseits nicht beide Schleusentüren ordnungsgemäß gasdicht verschlossen, wird eine Drehung des Innenrohres 4 um die Rohrlängsachse 3 durch den Metallschieber an der nicht verschlossenen Schleusentür blockiert,Outside the glove box 21, on the outside of the jacket of the inner tube 4 protruding from the outer tube 2, a hand lever 26 is attached, with which the inner tube 4 can be rotated relative to the outer tube 2 about the tube longitudinal axis 3. The angle of rotation is limited by the angular distance between the two ends of the elongated hole 30 in the jacket of the inner tube 4 with respect to the longitudinal axis 3 of the tube. This angular distance is dimensioned such that in the one end position of the possible rotational movement of the inner tube 4 about the tube longitudinal axis 3, a sliding movement of the metal slide 14a on the one lock door 6a is blocked radially outwards by the locking body 17a fastened to the outer tube 2, while in the other end position the possible rotational movement of the inner tube 4 about the tube longitudinal axis 3, a sliding movement of the metal slide 14b on the other lock door 6b is blocked radially outward by the locking body 17b on the outer tube 2 is. It is advantageous if the angular distance between the ends of the elongated hole 30 with respect to the longitudinal pipe axis 3 and the angular distances between the locking bodies 17a and 17b and between the metal slides 14a and 14b on the lock doors 6a and 6b with respect to the longitudinal pipe axis 3 are coordinated with one another in this way are that each of the locking bodies 17a and 17b only releases a displacement of the associated metal slide 14a or 14b radially outward on the lock door 6a or 6b when the inner tube 4 with respect to the outer tube 2 in one of the two through the ends of the elongated hole 30 in the jacket of the inner tube 4 certain end positions about the tube longitudinal axis 3 has been rotated. This ensures that only one of the two lock doors 6a and 6b can be opened, while the other lock door is locked in its closed position. If, on the other hand, both lock doors are not properly gas-tight, rotation of the inner tube 4 about the tube longitudinal axis 3 is blocked by the metal slide on the unlocked lock door,

Soll ein Einschleusfeil 22 in den Handschuhkasten 21 verbracht werden, so wird das Innenrohr 4 mit dem Handhebel 26 in die Endlage um die Rohrlängsachse 3 gedreht, in der die Schleusentür 6b an der Außenseite des Handschuhkastens 21 geöffnet werden kann, während die Schleusentür 6a an der Innenseite des Handschuhkastens 21 durch den Sperrkörper 17a in ihrer Verschlußstellung gesperrt ist. Die Schleusentür 6b wird, wie in Fig. 2 dargestellt, geöffnet und das Einschleusteil 22 in die Schleuse d. h. in das Innenrohr 4 eingebracht. In dieser Fig. 2 entsprechenden Phase des Einschleusvorganges läuft der Weg 27 der Zuluft durch den Rohrstutzen 23, durch die Schleuse d. h. durch den Innenraum des Innenrohres 4 und durch die Durchführung 24 für Abluft im Mantel des Innenrohres 4 sowie durch die Mündungsöffnung 25, die mit der Durchführung 24 fluchtet.If a sluice file 22 is to be placed in the glove box 21, the inner tube 4 is rotated with the hand lever 26 into the end position about the tube longitudinal axis 3, in which the lock door 6b on the outside of the glove box 21 can be opened, while the lock door 6a on the Inside of the glove box 21 is locked in its closed position by the locking body 17a. As shown in FIG. 2, the lock door 6b is opened and the insertion part 22 is introduced into the lock, ie into the inner tube 4. In this Fig. 2 corresponding phase of the sluicing process, the path 27 of the supply air runs through the pipe socket 23, through the lock ie through the interior of the inner tube 4 and through the passage 24 for exhaust air in the jacket of the inner tube 4 and through the mouth opening 25, which with implementation 24 flees.

Sodann wird die Schleusentür 6b auf der Außenseite des Handschuhkastens 21, wie in Fig. 3 dargestellt, verschlossen. Der Weg 27 der Zuluft durch die Schleuse bleibt unverändert.The lock door 6b on the outside of the glove box 21 is then closed, as shown in FIG. 3. Route 27 of the supply air through the lock remains unchanged.

Durch Verdrehen des Innenrohres 4 um die Rohrlängsachse 3 am Handhebel 26 in die andere Endlage wird der Metallschieber 14b an der Schleusentür 6b auf der Außenseite des Handschuhkastens 21 durch den Sperrkörper 17b gesperrt, während der Metallschieber 14a an der Schleusentür 6a an der Innenseite des Handschuhkastens 21 vom Sperrkörper 17a freigegeben wird. Wie Fig. 4 zeigt, kann also die Schleusentür 6a auf der Innenseite des Handschuhkastens 21 geöffnet und das Einschleusteil 22 der Schleuse d. h. dem Innenraum des Innenrohres 4 entnommen werden. Der Weg 27 der Zuluft verläuft in dieser Phase des Einschleusvorganges durch den Zuluftstutzen 23 in die Schleuse d. h. in den Innenraum des Innenrohres 4 und von dort direkt in den Innenraum des Handschuhkastens 21, da die Durchführung'24 für Abluft im Mantel des Innenrohres 4 nicht mehr mit der Mündungsöffnung 25 im Mantel des Außenrohres 2 fluchtet und damit die Mündungsöffnung 25 verschlossen ist. Der Metallschieber 14b der Schleusentür 6b ist in dieser Phase des Einschleusvorganges durch den Sperrkörper 17b gesperrt d. h. die Schleusentür 6b auf der Außenseite des Handschuhkastens 21 kann nicht geöffnet werden.By turning the inner tube 4 about the tube longitudinal axis 3 on the hand lever 26 into the other end position, the metal slide 14b on the lock door 6b on the outside of the glove box 21 is blocked by the locking body 17b, while the metal slide 14a on the lock door 6a on the inside of the glove box 21 is released by the locking body 17a. As shown in FIG. 4, the lock door 6a on the inside of the glove box 21 can be opened and the lock part 22 of the lock d. H. can be taken from the interior of the inner tube 4. The path 27 of the supply air runs through the supply air connection 23 into the lock d in this phase of the sluicing process. H. into the interior of the inner tube 4 and from there directly into the interior of the glove box 21, since the duct 24 for exhaust air in the jacket of the inner tube 4 is no longer in alignment with the mouth opening 25 in the jacket of the outer tube 2 and thus the mouth opening 25 is closed. The metal slide 14b of the lock door 6b is locked in this phase of the lock-in process by the locking body 17b d. H. the lock door 6b on the outside of the glove box 21 cannot be opened.

Nach dem Einbringen des Einschleusteiles 22 in den Handschuhkasten 21 wird die Schleusentür 6a auf der Innenseite des Handschuhkastens 21 wieder verschlossen. Mit dem Handhebel 26 wird sodann das Innenrohr 4 um die Rohrlängsachse 3 wieder in die erste Endlage zurückgedreht, in der entsprechend Fig. 5 der Sperrkörper 17a wieder die Schleusentür 6a auf der Innenseite des Handschuhkastens 21 in ihrer Verschlußstellung sperrt und der Sperrkörper 17b die Schleusentür 6b auf der Außenseite des Handschuhkastens 21 freigibt und in der die Durchführung 24 für Abluft im Mantel des Innenrohres 4 wieder mit der Mündungsöffnung 25 am Mantel des Außenrohres 2 fluchtet, so daß der Weg der Zuluft 27 durch die Schleuse d. h. den Innenraum des Innenrohres 4 wieder durch die Mündungsöffnung 25 verläuft. Die Schleuse ist in der Endphase nach Fig. 5 wieder zum Einschleusen eines weiteren Einschleusteiles in den Handschuhkasten 21 bereit, sie kann aber erforderlichenfalls auch durch Verdrehen des Innenrohres 4 mit dem Handhebel 26 in die andere Endlage gebracht werden, in der sie zum Ausschleusen eines Ausschleusteiles aus dem Handschuhkasten 21 bereit ist.After the introduction of the insertion part 22 into the glove box 21, the lock door 6a on the inside of the glove box 21 is closed again. With the hand lever 26, the inner tube 4 is then rotated back about the longitudinal axis 3 of the tube into the first end position, in which, according to FIG. 5, the locking body 17a again the locks Door 6a on the inside of the glove box 21 locks in its closed position and the locking body 17b releases the lock door 6b on the outside of the glove box 21 and in which the passage 24 for exhaust air in the jacket of the inner tube 4 is again aligned with the opening 25 on the jacket of the outer tube 2 , so that the path of the supply air 27 through the lock ie the interior of the inner tube 4 again through the mouth opening 25. 5 is ready again for the introduction of a further insertion part into the glove box 21, but if necessary it can also be brought into the other end position by turning the inner tube 4 with the hand lever 26, in which position it is for discharging a discharge part is ready from the glove box 21.

Claims (5)

1. Schleuse für ein Gehäuse, insbesondere eines Handschuhkastens, die ein Außenrohr mit kreisrundem Querschnitt zum Anbringen in einer Gehäuseöffnung und an beiden Rohrenden je eine Schleusentür mit einer Ver-riegelungsvorrichtung aufweist, dadurch gekennzeichnet , daß in dem Außenrohr (2) gegen dieses Außenrohr (2) um die Rohrlängsachse (3) verdrehbar koaxial ein Innenrohr (4) mit ebenfalls kreisrundem Querschnitt angeordnet ist, an dessen beiden Enden jeweils die Schleusentür (6) anscharniert ist, daß an jedem Außenrohrende ein Sperrkörper (7) zum Sperren der dort befindlichen Schleusentür (6) in Verschlußstellung angebracht ist und daß beide Sperrkörper (17) voneinander einen solchen Winkelabstand bezüglich der Rohrlängsachse (3) haben, daß die eine Schleusentür (6) durch den ihr zugeordneten Sperrkörper (17) in einer Drehwinkelposition des Innenrohres (4) bezüglich der Rohrlängsachse (3) gesperrt ist, in der die andere Schleusentür (6) von dem ihr zugeordneter Sperrkörper (17) freigegeben ist.1. Lock for a housing, in particular a glove box, which has an outer tube with a circular cross-section for attachment in a housing opening and at both tube ends a lock door with a locking device, characterized in that in the outer tube (2) against this outer tube ( 2) about the tube longitudinal axis (3) rotatable coaxially, an inner tube (4) is also arranged with a circular cross-section, at both ends of which the lock door (6) is hinged that a locking body (7) for locking the lock door located there at each outer tube end (6) is mounted in the closed position and that the two locking bodies (17) are at such an angular distance from one another with respect to the tube longitudinal axis (3) that the one lock door (6) through the locking body (17) assigned to it is in a rotational angle position of the inner tube (4) the pipe longitudinal axis (3) is locked, in which the other lock door (6) is free of the locking body (17) assigned to it given is. 2. Schleuse nach Anspruch 1, dadurch gekennzeichnet , daß die Sperrkörper (17) jeweils der Verriegelungsvorrichtung (14) zugeordnet sind.2. Lock according to claim 1, characterized in that the locking body (17) are each associated with the locking device (14). 3. Schleuse nach Anspruch 1, dadurch gekennzeichnet , daß zwischen Außen- (2) und Innenrohr (4) ein ringförmiges Dichtungselement (28, 29) angeordnet ist.3. Lock according to claim 1, characterized in that an annular sealing element (28, 29) is arranged between the outer (2) and inner tube (4). 4. Schleuse nach Anspruch 1, dadurch gekennzeichnet , ..daß das Innenrohr (4) am Mantel eine Durchführung (24) aufweist, die in der Drehwinkelposition des Innenrohres (4) bezüglich der Rohrlängsachse (3), in der eine der Schleusentüren (6) durch den Sperrkörper (17) in der Verschlußstellung gesperrt ist, mit einer Mündungsöffnung (25) im Mantel des Außenrohres (2) fluchtet.4. Lock according to claim 1, characterized in that the inner tube (4) has a bushing (24) on the jacket which, in the rotational angle position of the inner tube (4) with respect to the tube longitudinal axis (3), in which one of the lock doors (6 ) by the locking body (17) is locked in the closed position, is aligned with an opening (25) in the jacket of the outer tube (2). 5. Schleuse nach Anspruch 1, dadurch gekennzeichnet , daß sich im Mantel des Innenrohres (4) ein zur Rohrlängsachse (3) vertikales Langloch (30) befindet, in das ein am Mantel des Außenrohres (2) angebrachter Rohrstutzen (23) greift.5. Lock according to claim 1, characterized in that in the jacket of the inner tube (4) is a to the tube longitudinal axis (3) vertical elongated hole (30) into which a pipe socket (23) attached to the jacket of the outer tube (2) engages.
EP82108679A 1981-10-01 1982-09-20 Air lock for an enclosure, in particular for a glove-box Expired EP0076423B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813139126 DE3139126A1 (en) 1981-10-01 1981-10-01 "LOCK FOR A HOUSING, ESPECIALLY A GLOVE BOX"
DE3139126 1981-10-01

Publications (2)

Publication Number Publication Date
EP0076423A1 true EP0076423A1 (en) 1983-04-13
EP0076423B1 EP0076423B1 (en) 1985-05-02

Family

ID=6143193

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82108679A Expired EP0076423B1 (en) 1981-10-01 1982-09-20 Air lock for an enclosure, in particular for a glove-box

Country Status (3)

Country Link
EP (1) EP0076423B1 (en)
JP (1) JPS5875099A (en)
DE (2) DE3139126A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2616505A1 (en) * 1987-06-12 1988-12-16 Commissariat Energie Atomique Stopper for an orifice pierced in a wall

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2244082A (en) * 1937-06-14 1941-06-03 James A Reyniers Apparatus for and method of maintaining and working with biological specimens in a germfree controlled environment
GB915939A (en) * 1958-06-06 1963-01-16 Chicago Bridge & Iron Co Interlock system
GB1009602A (en) * 1962-03-08 1965-11-10 John Bass Ltd Improvements in or relating to air-lock chambers
FR1572558A (en) * 1968-05-17 1969-06-27

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2244082A (en) * 1937-06-14 1941-06-03 James A Reyniers Apparatus for and method of maintaining and working with biological specimens in a germfree controlled environment
GB915939A (en) * 1958-06-06 1963-01-16 Chicago Bridge & Iron Co Interlock system
GB1009602A (en) * 1962-03-08 1965-11-10 John Bass Ltd Improvements in or relating to air-lock chambers
FR1572558A (en) * 1968-05-17 1969-06-27

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2616505A1 (en) * 1987-06-12 1988-12-16 Commissariat Energie Atomique Stopper for an orifice pierced in a wall

Also Published As

Publication number Publication date
DE3263415D1 (en) 1985-06-05
EP0076423B1 (en) 1985-05-02
DE3139126A1 (en) 1983-05-26
JPH0254917B2 (en) 1990-11-22
JPS5875099A (en) 1983-05-06

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