Sealing transfer between two closed volumes comprising an external control lever

Abstract

The invention relates to a sealed transfer device between two closed volumes, comprising a first and a second flange (10) defining a passage opening to the closed volumes and being able to be fixed to each other by a first bayonet connection, and a first and a second door (11) closing the passage opening and being able to be fixed to each other by a second bayonet connection, the first door (11) being hingedly mounted on the first flange (10) by means of a hinge (4) comprising a hinge pin, characterized in that the device comprises an external manual control lever (9) fixed to a rotation pin passing through the first flange (10) and coupled to the hinge pin in such a way that the actuation of the control lever (9) drives the hinge pin, thus opening or closing the first door (11).

Description

Technical Field

[0001] This invention relates to a sealed conveying device between two enclosed volumes.

[0002] In this application, volume should be understood to mean any product, assembly, or device with a defined volume. Therefore, it can be a housing, insulator, socket, container, bag, etc.

[0003] Enclosed volume should be understood as a volume isolated from the external environment. This can specifically, but not exclusively, refer to volumes used for the preparation, storage, and / or handling of products that must not come into contact with the outside world or the user.

[0004] The conveying device according to the invention is specifically, but not exclusively, used to connect two enclosed volumes in order to transfer products from one volume to another without damaging the containers. This may include, for example, the conveying of hazardous products such as certain biological, chemical, or radioactive products; the conveying of components such as stoppers, vials, plungers, syringes, etc.; the conveying of environmental control devices such as culture media plates, particle counters, etc.; the conveying of cleaning systems; the conveying of liquids, powders, tools; the conveying of waste to the outside of the casing; and / or the conveying of any components required for the production or maintenance of the production line. Existing technology

[0005] A sealing device for transferring goods between two enclosed volumes typically comprises two flanges, each defining a passage opening to the enclosed volume, each of which is closed by a door. A flange and door in one enclosed volume can be bayoneted to a flange and door in the other enclosed volume, respectively, and can be secured to each other by rotational movement of one of the flanges and associated doors relative to the flanges and doors to which they are attached.

[0006] The sealing conveyor further includes control components for opening and closing two doors that are attached and secured to each other. The control components, movably mounted on one of the flanges, can be operated from within the volume using remote control components such as a remote controller or gloves.

[0007] To limit intervention within enclosed volumes that may contain toxic environments and thus reduce operator risk, manually actuated control mechanisms for opening and closing double doors and arranged outside the enclosed volume have been provided. As an example, patent application FR2998328 can be cited, which relates to a sealed housing including an opening formed in the housing wall, a flange secured in the opening, an entrance door closing the opening, the door being hinged to the flange, and a control mechanism comprising a sliding rack and pinion system driven by a wheel, the pinion being fixed to a movable element of the hinge, such that movement of the rack in one or the other direction according to the rotation of the wheel causes the door to open or close. However, such control mechanisms have the disadvantage of making opening and closing the door cumbersome, difficult, and non-instantaneous, requiring several rotations of the wheel to fully open or close the door.

[0008] Remotely actuated motorized mechanisms are also known. However, such mechanisms have the disadvantage of making the transmission device more complex. They also have disadvantages in terms of maintenance and size, especially when the electric motor is arranged in an enclosed volume.

[0009] The object of the present invention is to overcome these difficulties by providing a sealed transfer device between two enclosed volumes, with which the opening and closing of the double doors can be controlled simply, reliably and quickly without the risk of breaking the seal and without danger to the operator.

[0010] Another objective of this invention is to provide a conveying device that requires less effort to open the double doors. Summary of the Invention

[0011] Therefore, and according to a first aspect, the present invention provides a sealed conveying device between two enclosed volumes, comprising a first flange and a second flange defining a channel opening into the enclosed volumes, the first flange and the second flange being secured to each other by means of a first bayonet connection, a first door and a second door closing the channel opening, the first door and the second door being secured to each other by means of a second bayonet connection, the first door being hingedly mounted on the first flange by means of a hinge pin comprising a hinge pin and a plate, the plate being fastened to the first door and secured to the hinge pin. The conveying device is characterized in that it includes an external manual control lever fixed to a rotating pin, the rotating pin passing through the first flange and connected to the hinge pin in such a way that actuation of the control lever drives the hinge pin, thereby opening or closing the first door.

[0012] Advantageously, the rotating pin extends parallel to the axis of the channel opening.

[0013] According to a specific configuration, the sealing conveying device includes a second rotating pin that is advantageously offset relative to the rotating pin and is connected to the rotating pin by a drive member that passes through the first flange on one side and is connected to the hinge pin on the other.

[0014] According to one embodiment, the conveying device includes a component for locking a second flange to a first flange when the two connected doors—first and second—are in an open position, the component being disposed at a hinge. Advantageously, the locking component includes, on one hand, an elongated hole receiving a second rotating pin, and on the other hand, a locking finger extending toward the channel opening, the locking component being translatable along a direction perpendicular to the rotating pin of the hinge between a position in which the finger is recessed within the first flange and a position in which the finger protrudes radially from the first flange for locking the flanges together.

[0015] The sealing conveying device may also include a control mechanism comprising a control member mounted on a first flange for movement between a position for closing the first and second doors and a position for opening the first and second doors, the control member being radially positioned relative to a hinge, a first blocking member blocking the control member when there is no second door, and a second blocking member blocking the control member when there is no flange associated with the second door.

[0016] Advantageously, the first blocking member is radially movable between a blocking position and a releasing position. In the blocking position, the first blocking member has an outer peripheral end that engages in a blocking hole in the control member; in the releasing position, the outer peripheral end disengages from the blocking hole, and the first blocking member moves through a lug of the bayonet system of the second gate.

[0017] Advantageously, the control component is fixed to a rotating pin, which is mounted through an eccentric hole provided in the second blocking component.

[0018] Advantageously, the second blocking member is radially movable between a blocking position and a releasing position. In the blocking position, the eccentric hole blocks rotation of the control member; in the releasing position, the eccentric hole moves to allow rotation of the control member, and the first member moves via a lug of the bayonet system of the second flange.

[0019] The conveying device may also include a component for locking the second door to the first door when the first door and the second door are in the open position. The locking component is integrated into the first door. The component for locking the second door to the first door includes a locking finger that extends toward the passage opening and is radially movable between a position in which the locking finger is recessed into the first door and a position in which the locking finger protrudes radially from the first door to lock the doors together.

[0020] Advantageously, the control component can move between a closed position and an open position about an axis tangent to the circumference of the first flange, thereby opening the connected door. In the closed position, the component forms an angle α with the transverse plane of the flange, and in the open position, the component forms an angle β with the transverse plane that is larger than angle α. Attached Figure Description

[0021] Referring to the accompanying drawings, other features and advantages of the invention will become apparent from the following detailed description, in which:

[0022] - Figure 1 This is a front view of the exterior of the first enclosed volume of a sealed conveying device according to one embodiment;

[0023] - Figure 2 It is along Figure 1 A cross-sectional view of line II-II of the sealed conveyor device;

[0024] - Figure 3 yes Figure 1 Detailed perspective view of the hinge assembly of the sealed conveyor;

[0025] - Figure 4 yes Figure 1 Detailed internal view of the volume of the hinge assembly of the sealed conveyor;

[0026] - Figure 5a This is a cross-sectional view of the fixing mechanism in the position of the flange used to lock the second volume;

[0027] - Figure 5b yes Figure 5a A cross-sectional view of the fixing mechanism in the position of the flange used to unlock the second volume;

[0028] - Figure 5c yes Figure 5a A cross-sectional view of the fixing mechanism in the position of the flange used to lock the second volume;

[0029] - Figure 6 This is a perspective view of the interior of the first enclosed volume of the sealed conveying device according to another embodiment;

[0030] - Figure 6a yes Figure 6 A view above the closed assembly;

[0031] - Figure 7a It is a cross-sectional view of the mechanism for the existence of the door in the second volume when the second volume is connected to the first volume and the door of the first volume is in the locked position;

[0032] - Figure 7b yes Figure 7aA cross-sectional view of the mechanism, with the door of the first volume in the unlocked position;

[0033] - Figure 7c yes Figure 7b An enlarged view of the mechanism;

[0034] - Figure 8a It is a cross-sectional view of a fixing mechanism used to detect the presence of the flange of the second volume when the second volume is connected to the first volume and the door of the first volume is in the locked position;

[0035] - Figure 8b yes Figure 8a A cross-sectional view of the fixing mechanism, with the door of the first volume in the unlocked position;

[0036] - Figure 9a It is a cross-sectional view of a fixing mechanism for interlocking the door of the second volume with the door of the first volume, the mechanism being in the unlocked position;

[0037] - Figure 9b yes Figure 9a A cross-sectional view of the fixing mechanism is shown while the door is being opened;

[0038] - Figure 9c yes Figure 9a An enlarged view of the fixing mechanism, shown in the position for locking the doors together;

[0039] - Figure 9d yes Figure 9c A longitudinal cross-sectional view of the fixing mechanism, which is in the position that locks the doors together;

[0040] - Figure 10 This is a top perspective view of an alternative embodiment of a fixing mechanism for locking the flange of the second volume when the second volume is connected to the first volume and the door of the first volume is in the open position;

[0041] - Figure 11 yes Figure 10 A perspective view below the fixing mechanism;

[0042] - Figure 12 It is combined with the hinge pin. Figure 10 Cross-sectional view of the fixing mechanism;

[0043] - Figure 12a It is along Figure 12 The cross-sectional view of axis AA of the assembly depicted in the position of the flange used to unlock the second volume; and

[0044] - Figure 12b yes Figure 12aThe view shows the assembly in the position of the flange used to lock the second volume.

[0045] For clarity, the same or similar elements in the various embodiments are indicated by the same reference numerals in all figures.

[0046] In the following text, the term "interior" or "internal" in relation to an enclosed volume refers to or refers to the interior space of the enclosed volume. Similarly, the term "exterior" or "external" in relation to an enclosed volume refers to or refers to the exterior of the interior space of the enclosed volume or to or refers to the interior of the enclosed volume away from it. Detailed Implementation

[0047] about Figures 1 to 5c This describes a sealed transfer device between two enclosed volumes. According to a particular embodiment, the first enclosed volume is a housing, and the second enclosed volume is a container. Of course, this is just one embodiment, and the device according to the invention is not limited to this type of enclosed volume.

[0048] The depicted conveying device includes a first assembly 1, such as Figure 1 As shown, it includes a first flange 10 and a first door 11, the first flange defining a passage opening to a first enclosed volume (not shown), and the first door closing the passage opening defined by the first flange 10. The first door 11 is connected to the flange 10 by a hinge 4. The conveying device further includes a second assembly (not shown) including a second flange and a second door, the second flange defining a passage opening to a second enclosed volume, and the second door closing the passage opening defined by the second flange.

[0049] The first flange 10 and the first gate 11 of the first volume will subsequently be referred to as α flange 10 and α gate 11, and the second flange and the second gate of the second volume will be referred to as β flange and β gate.

[0050] Typically, the α flange and β flange can be secured to each other via a first bayonet-type connection. Similarly, the α gate and β gate can be secured to each other via a second connection, such as a bayonet-type connection. For this purpose, the flange and gate are respectively provided with internal or external notches and lugs.

[0051] The α door 11 is hingedly mounted on the α flange 10 via a hinge 4. In the depicted embodiment, the hinge 4 includes a hinge pin 40 and a plate 48, the plate being fastened to the inner surface of the α door 11 and fixed to the hinge pin 40.

[0052] According to the present invention, the conveying device includes an external manual control lever 9. The external control lever should be understood as a lever located outside the enclosed volume.

[0053] The control lever 9 is fixed to a rotating pin 90 mounted through the α-flange 10. In the depicted example, the rotating pin extends parallel to the channel opening axis. The rotating pin 90 is connected to the hinge pin 40 via a second rotating pin 41 and a drive member 43. Figure 2 and 4 As shown, the rotating pin 41 is offset relative to the rotating pin 90. More specifically, and depending on the specific configuration, the rotating through pin 90 is connected to the second rotating pin 41 via a wheel / worm gear or bevel gear transmission. Similarly, the hinge pin 40 is connected to the second rotating pin 41 via a pinion, chain, or belt.

[0054] Therefore, when the control lever 9 is actuated by rotational movement parallel to the axis of the passage opening, the rotating pin 90 on which the control lever is mounted rotates. This rotating pin drives a second rotating pin 41 via a drive member 43, which in turn transmits the rotational movement to the hinge pin 40 via a drive member 44 disposed between the second rotating pin 41 and the hinge pin 40. The hinge pin then drives a plate 48 fastened to the α-door 11, thereby opening the door. The α-door will close in the same manner by rotating the control lever in the opposite direction.

[0055] Advantageously, the conveying device includes a locking component 8, which interlocks the β flange with the α flange 10 when the two enclosed doors are joined together and placed in the open position inside the housing. The device thus forms a component for securing the β flange of the door in an unlocked manner.

[0056] exist Figures 5a to 5c In the depicted embodiment, the locking member 8 includes a hole 80 through which an end pin 42 passes, supporting a second rotating pin 41. The locking member further includes a finger 81 pointing towards the channel opening. The locking member is translatable within a movable flange to move from a position where the finger is fully retracted into the α-flange and a locked position, in which the member translates such that the finger extends from the inner surface of the α-flange 10.

[0057] Therefore, when the α door 11 of the housing is closed and the β component (β door and β flange) is not present, the locking component 8 is positioned such that the finger 81 does not protrude relative to the inner surface of the α flange 10. When the β component abuts against and is secured to the housing, the α flange and β flange are locked together by the actuation control lever 9. When the door is opened by the actuation control lever 9, the rotating pin 90 rotates the second rotating pin 41 via the drive member 43. During the rotation of the second rotating pin, the bolt 42 translates the locking component to position the finger 81 in a notch in the flange of the β door, such that the outer lug of the β flange abuts against the finger 81 to prevent rotation of the β flange.

[0058] Figures 6 to 9cAnother embodiment of the conveying device is described. This device has the same features as the aforementioned conveying device involving opening the α door from the outside via an arrangement of an external control lever 9 / rotating pin 90 / second auxiliary pin 41 / hinge pin 40, and having a component for fixing the β flange relative to the α flange in an unlocking manner during the opening of the α and β doors.

[0059] The conveying device according to this embodiment further includes a control component 3 mounted on the α-flange 10, movable between a closed position and an open position for the α-door 11 and β-door, wherein in the closed position, the α-door 11 sealably closes the passage opening defined by the α-flange 10. In the depicted embodiment, the control component 3 is an internal opening handle 31 of the α-door 11, which is manually actuated and rotatably mounted about a pin 30 arranged radially opposite to the hinge 4 and advantageously positioned tangentially to the circumference of the α-flange 10 between the closed and open positions. In the closed position, the component forms an angle α with the transverse plane of the flange, and in the open position, the component forms an angle β with the transverse plane, where angle β is greater than angle α. The control component 3 and the hinge 4 are supported by the α-flange 10.

[0060] The conveying device according to this embodiment also includes engagement openings for the α-door and β-door of the two connected volumes, as well as additional fixing members related to the internal communication arrangement of each of the volumes.

[0061] Therefore, the conveying device includes a set of fixing mechanisms comprising two components for blocking the control component 3 and two components for locking the door and flange together. Thus, the device includes: a first blocking component 5 that blocks the control component 3 when the β door 21 is not present; a second blocking component 6 that blocks the control component 3 when the associated β flange 20 is not present; a first locking component 7 that interlocks the β door 21 with the α door 11; and a second locking component 8 that interlocks the β flange 20 with the α flange 10 when the two connected doors 11, 21 are open.

[0062] The blocking component 5 and the locking component 7 are integrated into the α door 11, while the blocking component 6 is located in the control unit, and the locking component 8 is located in the hinge 4. The operation of these fixing components is described below.

[0063] First fixing component: blocking component 5 ( Figure 7a , 7b 7c)

[0064] The first blocking member 5 has the function of blocking the control member 3 in the closed position when the β door 21 is not locked to the α door 11. Therefore, the first blocking member forms a so-called member for fixing the existing β door 21 to the α door 11.

[0065] The first blocking component 5 is a lock integrated into the α-door 11. The component includes an upper finger 50 and a lower finger 52, which extend parallel to each other and parallel to the plane of the α-door 11, and are connected to each other via a connecting wall. The blocking component 5 is installed such that it slides radially within a cavity 51 in the α-door 11 under the action of a return member (here, a compression spring 55) and against the return member, i.e., perpendicular to the axis of the channel opening defined by the α-flange and perpendicular to the rotating pin 30 of the control component 3. Therefore, the blocking component 5 is movable between a blocking position and a releasing position. In the blocking position, the blocking finger 50 engages in a blocking hole 33 in the housing 32, which is supported by the α-flange 10, and accommodates the pin 30 connected to the control component 3 in the blocking hole. In the releasing position, the blocking finger 50 disengages from the blocking hole 33. Without the container, the control component 3 is blocked in the closed position by the blocking finger 50 engaged in the blocking hole 33. Figure 7a When the container is mated to the outer shell, the β flange 20 and β door 21 contact the α flange 10 and α door 11 of the outer shell, respectively, with the outer lug 200 of the β flange 20 positioned in the recess 100 in the α flange 10. The operator then rotates the β component (β door and flange) clockwise (approximately 60 degrees) into the α component (α door and flange) until it contacts the stop 14 of the α flange 10. The β flange 20 is then blocked by the α flange 10 and translated. The β door 21 unlocks from the β flange 20 and interlocks with the α door 11. During the rotational movement for connecting the β component to the α component, one of the inner lugs 210 of the β door 21 pushes the lower finger 52 of the blocking member 5, which has the effect of moving the finger into the cavity 51 and away from the α flange 10 by means of a compression spring 55. The blocking member 5 carries the finger 50 in its movement, and then the finger disengages from the blocking hole 33 in the block 32. Once the finger is released, control component 3 can be actuated to open the locked α and β doors. Locking the doors together will be described later.

[0066] Second fixing component: blocking component 6 ( Figure 8a , 8b )

[0067] The second blocking member 6 has the function of blocking the control member 3 in the closed position when the β flange 20 is not fully fixed to the α flange 10. Therefore, the blocking member forms a so-called component for fixing the existing β flange 20 to the α flange 10.

[0068] The second blocking member 6 serves as a latch. Its specific shape allows for mechanical blocking of the opening if the presence of the β-flange 20 is not observed.

[0069] More specifically, the blocking member 6 includes an eccentric hole 60 that receives the rotating pin 30 of the control member 3 (in the depicted example, the hole has two parallel and offset opening axes). The blocking member 6 also includes fingers 61 extending to project from the α flange 10. The blocking member 6 is mounted in the housing 32 so as to be able to slide radially against and against the compression spring 65, i.e., slide perpendicular to the axis of the channel opening defined by the α flange 10. The blocking member is movable between a blocking position and a releasing position, in which the eccentric hole 60 blocks the rotational movement of the pin of the control member 3. Figure 8a In the released position, the eccentric hole moves toward the outer circumference of the flange 10 to allow rotation of the rotating pin 30 to which the control component 3 is connected. Figure 8b ).

[0070] Without a container, the rotating pin 30 passes through the portion of the hole 60 that blocks the rotational movement of the pin, thus blocking the control member 3 in the closed position. When the container is mated to the housing, the β flange 20 and β door 21 contact the α flange 10 and α door 11, with the outer lug 200 of the β flange 20 positioned in the recess 100 in the α flange 10. The β member is then connected to the α member by rotating the β member clockwise (approximately 60 degrees) until it contacts the stop 14 supported by the α flange 10. The β flange 20 is then blocked by the α flange 10. During the rotational movement for connecting the β member to the α member, the outer lug 200 of the β flange 20 pushes the finger 61 of the second blocking member 6, which has the effect of causing the blocking member 6 to move radially outward toward the α flange 10, and thus causing the hole 60 relative to the rotating pin of the control member 3 to move to the position where the rotating pin 30 of the control member 3 is released. Figure 8b ).

[0071] The advantage of providing these two blocking components 5 and 6 is that they provide double securing members for opening the connected door, which can only be opened when the β flange 20 and β door 21 are properly connected to the α flange 10 and α door 11 of the housing, respectively. Therefore, these two blocking components are for securing the existing β door and β flange to the associated α component.

[0072] Third fixing component: Locking component 7 ( Figures 9a to 9d )

[0073] When the control component 3 is moved to the position for opening the door, the locking component 7 functions to interlock the β door 21 with the α door 11. The locking component 7 includes a lower finger 71 and an upper finger 72, which extend parallel to each other and perpendicular to the plane of the α door 11, and are connected to each other via a connecting wall. The lower finger 71 forms a locking finger (also indicated by reference numeral 71) that can move from its recessed position within the α door 11 to its radially protruding locking position. The locking component 7 is installed such that it abuts against the compression spring 73 and slides radially into the cavity 70 within the α door 11 under the action of the compression spring. When the control component 3 is in the closed position, the locking component 7 is held against the housing 32 by the upper finger 72 under the action of the compression spring 73. Figure 9a When the control component 3 moves to the position for opening the door, the α door 11 carries the upper finger 72 during its rotational movement, which detaches from the housing 32. Figure 9b and 9c When the upper finger 72 is fully disengaged, the locking member 7 is pushed outward by the compression spring, thereby moving the locking finger 71 into the notch in the β door 21. Since the β door 21 is blocked by the inner lug 210 of the β door 21 positioned between the lower finger 71 and the abutment 12 supported by the α door 11, the β door can no longer rotate relative to the α door 11. Figure 9d ). Figures 9a to 9c The locking component 7 is shown in its position for closing the door. Figure 9a Transition to its position for opening the door. Figure 9c The movement of locking component 7 during the period is depicted in the intermediate position. Figure 9b ).

[0074] Fourth fixing component: Locking component 8 ( Figures 5a to 5c alternatives Figures 10 to 12b )

[0075] When the door is opened from inside the housing, the locking component 8 functions to interlock the β flange 20 with the α flange 10. The locking component engages with the pin 40 of the hinge 4. This forms a component designed to secure the β flange 20 of the door in an unlocked manner.

[0076] The locking component 8 includes a hole 80 through which a bolt 42 passes. The bolt is supported by a second rotating pin 41, which is connected to the pin 40 of the hinge 4 via drive members 43, 44 (cams in the depicted example). The second rotating pin 41 is also connected to a third pin 45, which passes through the α flange 10 and is actuated by an external lever (not shown) to allow the α door 11 to open.

[0077] The locking component 8 includes a finger 81 facing the interior of the channel opening. The locking component is translatable perpendicularly to the rotating pin 40 of the hinge 4 toward the interior of the channel opening of the α flange 10.

[0078] When the α door 11 is closed, the locking member 8 is positioned such that the finger 81 is recessed relative to the inner surface of the α flange 10. When the door is opened by actuation of the external lever, the third pin 45 rotates the second rotating pin 41 via the drive member 43. During the rotation of the second pin 41, the bolt 42 slides along the hole 80, which is arranged to translate the locking member 8 and position the finger of the locking member in a recess in the β flange 20. Since the β flange 20 is no longer able to rotate relative to the α flange 10 by placing one of the outer lugs 200 of the β flange 20 against the finger 81 of the locking member and being blocked by the stop 14 of the α flange 10, the β flange is no longer able to rotate relative to the α flange 10. In the aforementioned method, the opening of the door is actuated by the external lever. Of course, this is obviously an embodiment, and the hinge may not be connected to the external lever (in which case the hinge would lack the third rotating pin). Then, after releasing the control member 3, the door is manually opened by pulling the α door from the inside.

[0079] Figures 10 to 12b An alternative embodiment is shown for interlocking the β flange 20 with the α flange 10 when the door is opened inside the housing.

[0080] In this alternative, the locking member 8 is connected to the pin 40 of the hinge 4 via a cam, which is fixedly mounted around the pin. The cam 90 has a first profile of a pawl 91, which is arranged to reach the bolt 82 supported by the locking member 8 under pressure, and thus translate the locking member toward the channel opening during actuation in one direction (clockwise in the illustrated example). The cam 90 also has a second profile 92, which is arranged to block the bolt 82, and thus for the translation of the locking member 8 when the α door 11 is in the closed position. Advantageously, the locking member 8 is guided translationally within the guide rail 100.

[0081] Therefore, when the α door 11 is closed, the locking member 8 is positioned such that the finger 81 is recessed relative to the inner surface of the α flange 10, while the cam 90 is in position for passing through the second profile 92 blocking bolt 82. Figure 12a When the door is opened, the pin 40 of hinge 4 rotates clockwise, as... Figure 12b As depicted, rotating the cam 90 stresses the pin 82 through the contour of the cam's pawl 91. As the locking member 8 is pushed by the cam 90, it translates along the guide rail towards the channel opening in a manner guided by the guide rail 100, thereby positioning the finger 81 in a notch in the β-flange 20.

[0082] The present invention has been described above by way of examples. It should be understood that those skilled in the art can generate various alternative embodiments of the invention without departing from the scope of the invention.

Claims

1. A sealed conveying device between two enclosed volumes, comprising - A first flange and a second flange (10, 20) defining a channel opening to the enclosed volume, the first flange and the second flange (10, 20) being able to be secured to each other by a first bayonet connection, and - A first door and a second door (11, 21) that close the passage opening, the first door and the second door (11, 21) being able to be connected and secured to each other via a second bayonet. - The first door (11) is hingedly mounted on the first flange (10) by means of a hinge (4), the hinge comprising a hinge pin (40) and a plate (48), the plate being fastened to the first door (11) and fixed to the hinge pin (40). Its features are, The device includes an external manual control lever (9) fixed to a rotating pin (90), which passes through the first flange (10) and is connected to the hinge pin (40) by actuating the control lever (9) to open or close the first door (11). The sealing conveying device includes a second rotating pin (41), which is connected by a drive member (43) to the rotating pin (90) passing through the first flange (10) on one hand, and to the hinge pin (40) on the other hand.

2. The sealing conveying device according to claim 1, characterized in that, The rotating pin extends parallel to the axis of the channel opening.

3. The sealing conveying device according to claim 2, characterized in that, The second rotating pin (41) is offset relative to the rotating pin (90).

4. The sealing conveying device according to claim 3, characterized in that, The sealing conveying device includes a locking member (8) for locking the second flange to the first flange (10) when the first and second doors connected together are in the open position, the locking member being disposed at the hinge (4).

5. The sealing conveying device according to claim 4, characterized in that, The locking member (8) includes, on one hand, an elongated hole for receiving the second rotating pin, and on the other hand, a locking finger (81) extending toward the channel opening. The locking member is translatable along the direction of the hinge pin (40) perpendicular to the hinge (4) between a position where the locking finger (81) is recessed within the first flange and a position where the locking finger (81) protrudes radially from the first flange (10) for locking the first and second flanges together.

6. The sealing conveying device according to claim 4, characterized in that, The sealing conveying device further includes a control mechanism, the control mechanism comprising: - A control component (3), mounted on the first flange (10), is movable between a position for closing the first and second doors (11, 21) and a position for opening the first and second doors, the control component being positioned radially opposite the hinge. - A first blocking component (5) that blocks the control component (3) in the absence of the second door (21), and - A second blocking component (6) that blocks the control component (3) in the absence of the second flange associated with the second door (21).

7. The sealing conveying device according to claim 6, characterized in that, The first blocking member (5) is capable of radial movement between a blocking position and a releasing position. In the blocking position, the first blocking member has an outer peripheral end that engages in a blocking hole (33) in the control member (3). In the releasing position, the outer peripheral end disengages from the blocking hole. The first blocking member moves through the lugs of the bayonet system of the second door.

8. The sealing conveying device according to claim 7, characterized in that, The control component (3) is fixed to another rotating pin, which is installed through an eccentric hole provided in the second blocking component.

9. The sealing conveying device according to claim 8, characterized in that, The second blocking member is capable of radial movement between a blocking position and a releasing position, in which the eccentric hole blocks the rotation of the control member (3), and in the releasing position, the eccentric hole moves to allow the rotation of the control member (3), and the first blocking member moves through the lug of the bayonet system of the second flange.

10. The sealing conveying device according to claim 9, characterized in that, The sealing conveying device further includes another locking member (7) for locking the second door (21) to the first door (11) when the first door and the second door are in the open position. The other locking member (7) is integrated into the first door (11). The other locking member (7) for locking the second door (21) to the first door (11) includes locking fingers (81) that extend toward the channel opening and are radially movable between a position in which the locking fingers are recessed in the first door and a position in which the locking fingers protrude radially from the first door (11) for locking the first door and the second door together.

11. The sealing conveying device according to claim 10, characterized in that, The control component (3) is movable between a closed position and an open position about an axis tangent to the circumference of the first flange (10). In the closed position, the control component forms an angle α with the transverse plane of the flange. In the open position, the control component forms an angle β with the transverse plane that is larger than α and opens the connected first and second doors.

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