EP0022456A1 - Device for extracting harmful solid, liquid or gaseous materials, especially for exhaust gases from combustion engines - Google Patents

Device for extracting harmful solid, liquid or gaseous materials, especially for exhaust gases from combustion engines Download PDF

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Publication number
EP0022456A1
EP0022456A1 EP80102546A EP80102546A EP0022456A1 EP 0022456 A1 EP0022456 A1 EP 0022456A1 EP 80102546 A EP80102546 A EP 80102546A EP 80102546 A EP80102546 A EP 80102546A EP 0022456 A1 EP0022456 A1 EP 0022456A1
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EP
European Patent Office
Prior art keywords
suction
hose
link elements
elements
sealing
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
EP80102546A
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German (de)
French (fr)
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EP0022456B1 (en
Inventor
Horst Ludscheidt
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.)
Ludscheidt KG Te Dortmund Bondsrepubliek Duitslan
Original Assignee
Ludscheidt Horst
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
Priority claimed from DE2928519A external-priority patent/DE2928519C2/en
Priority claimed from DE19803015129 external-priority patent/DE3015129A1/en
Application filed by Ludscheidt Horst filed Critical Ludscheidt Horst
Priority to AT80102546T priority Critical patent/ATE1269T1/en
Publication of EP0022456A1 publication Critical patent/EP0022456A1/en
Application granted granted Critical
Publication of EP0022456B1 publication Critical patent/EP0022456B1/en
Expired legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
    • B08B15/002—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using a central suction system, e.g. for collecting exhaust gases in workshops
    • B08B15/005—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using a central suction system, e.g. for collecting exhaust gases in workshops comprising a stationary main duct with one or more branch units, the branch units being freely movable along a sealed longitudinal slit in the main duct

Definitions

  • the invention relates to a device for extracting solid and / or liquid and / or gaseous pollutants, in particular exhaust gases from internal combustion engines, with a stationary extraction duct with a hose carriage with an exhaust hose arranged movably thereon, the hose carriages having areas in the suction duct engage a suction slit provided with sealing elements and the sealing elements can be moved by the hose trolley from a position sealing the suction slit into a position releasing the suction slit.
  • Known devices of this type are generally used in car workshops or vehicle depots and consist of suction channels that are installed in the area of the hall ceiling and are connected to an exhaust air blower Have rail on which hose cars are arranged to be movable.
  • the underside of the suction ducts which allows the hose trolleys to pass through is designed as a suction slot which is sealed off by sealing lips which are at an angle to one another, the sealing lips being moved apart when the suction trolley is moving and should cling to one another again after passing through the suction trolley.
  • Devices of this type have the particular disadvantage that, after prolonged use, the rubber-like ones Fatigue material existing sealing lips and the sealing effect is lost, so that the exhaust fan draws more and more external air over time, so that the system is ineffective.
  • the sealing lips are generally only heat-resistant to a very limited extent, so the systems are not suitable for high-performance test benches or the like.
  • the known devices have the disadvantage that the sealing lips no longer close completely in the case of spatially very closely spaced hose trolleys between the hose trolleys, so that an insufficient amount of external air is sucked in even if the sealing lips are intact.
  • the object of the invention is to provide a solution with which, with economic means, a device is created which is also particularly suitable for use at very high pollutant temperatures, the suction channel seal not being subject to wear and a very dense sequence of hose trolleys being made possible.
  • this object is achieved according to the invention in that the sealing elements of the suction slot are designed as interconnected link elements made of heat-resistant material and guided on the suction channel.
  • the seal is made by interconnected link elements which, depending on the design, can be produced from the appropriate materials, but which not only have to have pure sealing functions, but also have to ensure the mobility of the entire seal.
  • the link elements are connected to one another in their longitudinal direction, and in a further embodiment it can be provided that a longitudinal end face of the link element is designed to engage behind the corresponding end area of the adjacent element. This design enables a suction slot cover, which practically completely prevents the inflow of outside air.
  • the link elements are each equipped with a roller which can be acted upon by a link surface on the hose trolley.
  • This roller is so be part of the hose cart opens up that the individual link elements rise and lower when a hose cart drives past to release its suction opening.
  • the invention also provides that the hose trolley is equipped with a guide rail for positively guiding the rollers on the link elements.
  • This guide rail can be designed as a single component, but it can also be designed as an integrated component of a covering surface of the tubular hose protruding toward the interior of the channel, in which the rollers on the link elements engage.
  • the link elements are designed on their foot side so that they only lie in the closed position with a small area in their guide profile, which is expediently done by chamfering the underside, so that a corresponding link element lines or point contact has what causes skew u. Like. Is avoided.
  • the invention is particularly suitable for the endless guidance of hose carts, which is advantageous, for example, on test benches of technical monitoring associations or on other production or test lines in which the vehicle to be tested is in one direction in a test retracts road and leaves it on the other side, so that the hose carts carried can be clamped into the corresponding road at the entrance of the vehicle, carried with the vehicle and then freely guided back to the starting point after leaving the suction channel.
  • the invention provides that, in order to fix the link elements in the channel, at least the link elements arranged at the channel entrance or exit are equipped with a guide, whereby it may be expedient to design the guide as a guide rod engaging in the cavity of the hollow profiled link element .
  • the invention provides that the sealing elements of the suction slot are designed as link elements made of heat-resistant material and articulatedly connected to one another on the suction channel.
  • the suction slot on each side of the suction channel, for example, as in the prior art on the underside, and to form the sealing elements from two chains of link elements, which may be moved against the spring force by the hose trolley.
  • the invention provides in an embodiment that the suction slot in a lateral substantially vertical th wall of the suction channel is arranged. This design has the advantage that only a chain of link elements needs to be used for sealing the suction channel, which is passed under by elements on the hose trolley and raised against the direction of gravity.
  • the invention provides for this that the hose trolley is provided with a suction nozzle protruding into the interior of the hose channel for displacing the link elements.
  • the suction nozzle is provided with means that reduce the friction with respect to the link elements.
  • these means can either be formed from a plurality of small rollers arranged on the suction nozzle in the corresponding areas or else from a running chain rotatably arranged at the suction nozzle.
  • the invention is not limited to these special friction-reducing agents.
  • plastic plain bearings or the like can be provided here, for example, or the suction nozzle protruding into the interior of the suction channel can itself be rotatably mounted in the outer part of the hose carriage.
  • the link elements are designed as essentially circular plates which are connected to one another in an articulated manner and are displaceably arranged in guide elements of the suction channel.
  • the circular shape of the link elements favors the flexibility and thus the easy lifting of the sealing system, particularly when, as the invention also provides, the suction nozzle is approximately circular in cross-section.
  • the invention provides that the link elements are equipped as hingedly connected, displaceably arranged in guide elements of the suction channel, essentially beaver tail-shaped plates, an embodiment which is particularly advantageous in the case of a circular suction nozzle.
  • the device according to the invention can also be used, in particular, in test systems of the technical monitoring associations, in which case the tube wagons must then be able to circulate.
  • the link elements are elastically supported on both sides at the end of the suction channel are. This elastic mounting, which can be brought about, for example, by spiral spring elements or the like, causes the system to spring back each time a hose cart is retracted.
  • the hose trolley is provided with a sealing disk which can be moved parallel to the suction slot and which covers openings resulting from the lifting of the link elements, the suction nozzle being guided through this sealing disk.
  • This sealing washer prevents the inflow of outside air, so that the full suction power of the system remains independent of the position of the hose trolley.
  • the sealing disk has bearings for receiving the rollers of the hose carriage.
  • the link elements are in the top and bottom Guided profiles that have such a size that the non-overlapping areas of adjacent link elements are covered by profile webs.
  • the invention expediently provides here that the guide profiles for the link elements and the associated rails for the hose trolleys are each formed by an upper and lower profile attached to the suction channel.
  • the suction channel itself can be made of sheet steel or the like, while the guide and running profiles are made of aluminum or the like.
  • the ends of the suction channel are equipped with an inlet and outlet chamber for extending and retracting the hose trolley into the suction channel.
  • the suction channel from aluminum profiles, which can be attached to one another by means of clamping profiles that can be assembled to form the channel.
  • This design of individual profiles, which can be joined together with clamping profiles without other aids, enables very rapid and expedient production. It is possible, for example, to have the chamber profiles forming the rear wall available in different U-shaped dimensions depending on the desired cross-sectional size and, depending on the desired product, with different channel crossings with the same profiled carriage and sectional element guide profiles cuts are to be created.
  • the device for the extraction of pollutants essentially consists of an extraction duct 2 with an essentially rectangular cross section, which is mounted, for example, in the area of the workshop ceiling of an auto repair workshop and is connected to an exhaust air blower 4 via an intake opening 3.
  • the suction channel 2 is equipped with a suction slit 6, which is closed by essentially circular link elements 7 or essentially beaver-tail link elements 8 (FIG. 4).
  • the disk-shaped link elements 7 and 8 are mutually overlapping and rotatably connected to each other at 9 and 9 ', for example by means of a rivet or the like, the link elements being made from metal or asbestos cement or another heat-resistant material.
  • the vertical side wall 5 is profiled in the manner shown in FIGS. 1 and 2, ie there are two short guide webs 10 on its bottom, while in the Head area two long.
  • Guide webs 11 are provided, in which the link elements, as can be seen in particular from FIGS. 3 and 4, can be raised to such an extent that a suction nozzle 12 or 12 'can be moved beneath them, as will be described in more detail below will be.
  • an outward and upward running rail 13 is integrally formed in the lower region or in the upper region of the wall 5 an outward and downward running rail 14.
  • Rollers 16 arranged in bearing blocks 15 run on the running rails 13 and 14 (FIG. 2).
  • the bearing blocks 15 are fastened to a sealing disk 17 which can be displaced in the plane of the vertical wall 5 via the rollers 16, the suction connector 12 or 12 'being guided through the sealing disk 17 into the interior of the suction channel 2, as can be seen in FIG. 2 .
  • the part of the suction nozzle 12 which projects into the interior of the suction duct 2 and which, in the position of use, lies against the edges of the link elements 7 and 8 is provided with friction-reducing elements, for example with small rollers 18 (FIG. 2) or with one not shown in detail Chain 19 (Fig. 4).
  • the suction nozzle 12 itself can have a substantially cross-sectional circular segment shape or as shown in Fig. 4, circular. It leads, for example, via a collecting chamber 20 (FIG. 1) or a pipe elbow 21 (FIG. 2) to an exhaust gas hose 22, which is only shown in the drawing and which, in the case of use in cars or trucks, can be connected to the exhaust of the respective internal combustion engine.
  • Fig. 3 it is also shown that the link elements 7 and 8 are each held elastically at the end of the suction channel 2, for example via a spring 24 indicated there by dash-dotted lines in Fig. 2 further shows that the rails 13 and 14th can be led out over the suction channel and can optionally be guided to the other side in the form of a loop, so that a continuous passage through the suction channel 2 of several hose cars (generally designated 23 in FIG. 1) is possible.
  • the mode of operation of the device is as follows: if, for example, a hose trolley 23 in FIG. 3 is fed to the suction channel 2 from the left, the first of the link elements 7 is raised slightly by the leading edge on the suction nozzle 12 and moved upward within the webs 11. The further retraction of the tubular carriage 23 requires a further lifting of a link element and, due to the coupling of adjacent link elements to one another, also the lifting of adjacent link elements. The individual positions are shown in dashed lines in FIG. 1, as well as in FIGS. 3 and 4.
  • the end faces of the suction channel 2 can be closed, which is not shown in detail, whereby only the cutouts which allow the suction nozzle 12 to enter or exit, for example with brushes or the like, are closed, but this is also not shown in more detail.
  • FIGS. 5-7 A further exemplary embodiment of the invention is shown in FIGS. 5-7.
  • the same elements as in FIGS. 1-4 are provided with the same, deleted reference numerals.
  • the link elements 7 ' are mutually interlocking with a dovetail-shaped longitudinal side 28 on the one hand and a longitudinal bead 29 engaging therein, on the other hand, in a longitudinally displaceable manner, as can be seen in particular from FIG. 6, the link elements being made from metal, asbestos cement or another heat-resistant material are. In the example shown, these are aluminum hollow profiles.
  • the vertical side wall 5' is profiled in the manner shown in FIG. At its bottom there are two short guide webs 10 ', while in the head region two long guide webs 11' are provided, in which the link elements, as can be seen in particular from FIG. 7, can be raised so far that a suction nozzle 12 'is moved behind them can be.
  • an outward and upward running rail 13' is integrally formed in one piece in the lower region or upper region of the wall 5 ', an essentially C-shaped running rail 14'.
  • a hose carriage 23 ' is slidably guided with the aid of running rollers and guide rollers, which is not shown in more detail.
  • the Hose trolley 23 ' has a sealing washer 17' with which a guide washer 30 is connected in the interior of the suction channel and is equipped with a guide rail 31.
  • each link element 7 ' is provided with a possibly roller-mounted roller 32 which is directed towards the interior of the channel 2'. If the hose carriage 23 'and thus the guide disk 30 are displaced in the interior of the channel, the rollers 32 come into engagement with the guide rail 31 one after the other and, by virtue of their positive guidance, bring about the raising and lowering of the laterally guided link elements 7' in the direction shown in FIG of the double arrow 33 in Fig. 7.
  • the link elements 7 ' are angular in the lower region, so that a support region 34 is formed as a tip.
  • the last link element 7 "in each case is held on the suction channel with a guide rod 35 such that it can move in the direction of the double arrow 33, but prevents displacement in the direction of the travel movement of the hose carriage 23 '.
  • sealing rollers 36 are provided on the sealing disk 17 'in the example shown, the width of which corresponds to the width of the suction slot 6 'corresponds.
  • Fig. 5 it is also shown that the entire channel 3 'is formed from individual profiles, the size of the rear wall profile 37, which can be adapted to the respective requirements, possibly made of aluminum sheet, via clamping profiles 38 on the rail profiles 39 and / or the same in all designs 40 can be determined.
  • the suction channel can be equipped with inlet and outlet locks 41, which allow an endless movement of several hose trolleys, which is not shown in more detail.
  • the described embodiments are still alter in many ways, without departing from the spirit of the g rfindung.
  • the invention is in particular not limited to the selected suspension of the hose cart and also not to a special shape of the link elements.
  • two rows of spring-loaded rows of link elements can be used for sealing the suction channel even when the suction slot is arranged horizontally.
  • This variant also allows the suction channel to be laid in the floor.
  • the invention is also not limited to the dovetailed / bead connection of the individual elements shown. Here's every kind of includes the longitudinal displaceability of the sealing lamella connection.

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Abstract

1. Apparatus for the suction removal of solid and/or liquid and/or gaseous noxious substances, in particular for the suction removal of exhaust gases from internal combustion engines, comprising a stationarily disposed suction removal duct (2) with hose carriages with hose, which are arranged movably on the duct, wherein the hose carriages (23) engage with portions (12) into the suction removal duct (2) through a suction slot (6) which is provided with sealing elements (7, 8), and the sealing elements (7, 8) are movable by the hose carriage (23) from a position of closing off the suction slot (6) into a position of opening the suction slot (6), characterised in that the sealing elements of the suction slot (6) are in the form of interconnected link elements (7, 8) of heat-resistant material, which are guided on the suction removal duct (2).

Description

Die Erfindung richtet sich auf eine Vorrichtung zum Absaugen von festen und/oder flüssigen und/oder gasförmigen Schadstoffen, insbesondere von Abgasen aus Verbrennungsmotoren, mit einem stationär verlegten Absaugkanal mit an diesem verfahrbar angeordneten Schlauchwagen mit Abgasschlauch, wobei die Schlauchwagen mit Bereichen in den Absaugkanal durch einen mit Dichtelementen versehenen Saugschlitz eingreifen und die Dichtelemente durch den Schlauchwagen von einer den Saugschlitz abdichtenden in eine den Saugschlitz freigebende Stellung bewegbar sind.The invention relates to a device for extracting solid and / or liquid and / or gaseous pollutants, in particular exhaust gases from internal combustion engines, with a stationary extraction duct with a hose carriage with an exhaust hose arranged movably thereon, the hose carriages having areas in the suction duct engage a suction slit provided with sealing elements and the sealing elements can be moved by the hose trolley from a position sealing the suction slit into a position releasing the suction slit.

Bekannte Vorrichtungen dieser Art (z.B. nach Prospekt der Firma Nordfilter-Anlagenbau GmbH, Lübeck) werden in der Regel in Kfz-Werkstätten oder Fahrzeugdepots eingesetzt und bestehen aus im Bereich der Hallendecke verlegten, mit einem Abluftgebläse in Verbindung stehenden Saugkanälen, die in ihrem Inneren eine Schiene aufweisen, an denen Schlauchwagen verfahrbar angeordnet sind. Die den Durchtritt der Schlauchwagen erlaubende Unterseite der Saugkanäle ist als von im Winkel zueinander stehenden Dichtlippen abgedichteter Saugschlitz ausgebildet, wobei bei Verfahren der Saugwagen die Dichtlippen auseinander bewegt werden und sich nach Passieren des Saugwagens wieder aneinander anschmiegen sollen.Known devices of this type (e.g. according to the brochure from Nordfilter-Anlagenbau GmbH, Lübeck) are generally used in car workshops or vehicle depots and consist of suction channels that are installed in the area of the hall ceiling and are connected to an exhaust air blower Have rail on which hose cars are arranged to be movable. The underside of the suction ducts which allows the hose trolleys to pass through is designed as a suction slot which is sealed off by sealing lips which are at an angle to one another, the sealing lips being moved apart when the suction trolley is moving and should cling to one another again after passing through the suction trolley.

Derartige Vorrichtungen haben insbesondere den Nachteil, daß nach längerem Gebrauch die aus einem gummiihnlichen Werkstoff bestehenden Dichtlippen ermüden und die Dichtwirkung verloren geht, so daß das Abluftgebläse im Laufe der Zeit mehr und mehr Fremdluft ansaugt, so daß die Anlage wirkungslos wird. Hinzu kommt, daß die Dichtlippen in der Regel nur in einem sehr begrenzten Rahmen wärmewiderstandsfähig sind, die Anlagen also für Hochleistungsprüfstände od. dgl. nicht geeignet sind. Auch haben die bekannten Vorrichtungen den Nachteil, daß bei räumlich sehr nah aufeinander folgende Schlauchwagen zwischen den Schlauchwagen die Dichtlippen nicht mehr vollständig schließen, so daß selbst bei intakten Dichtlippen eine unzureichend hohe Menge von Fremdluft angesaugt wird.Devices of this type have the particular disadvantage that, after prolonged use, the rubber-like ones Fatigue material existing sealing lips and the sealing effect is lost, so that the exhaust fan draws more and more external air over time, so that the system is ineffective. In addition, the sealing lips are generally only heat-resistant to a very limited extent, so the systems are not suitable for high-performance test benches or the like. Also, the known devices have the disadvantage that the sealing lips no longer close completely in the case of spatially very closely spaced hose trolleys between the hose trolleys, so that an insufficient amount of external air is sucked in even if the sealing lips are intact.

Aufgabe der Erfindung ist die Schaffung einer Lösung, mit welcher mit wirtschaftlichen Mitteln eine Vorrichtung geschaffen wird, die insbesondere auch zum Einsatz bei sehr hohen Schadstofftemperaturen geeignet ist, wobei die Saugkanalabdichtung keinem Verschleiß unterworfen ist und eine sehr dichte Folge von Schlauchwagen ermöglicht wird.The object of the invention is to provide a solution with which, with economic means, a device is created which is also particularly suitable for use at very high pollutant temperatures, the suction channel seal not being subject to wear and a very dense sequence of hose trolleys being made possible.

Bei einer Vorrichtung der eingangs bezeichneten Art wird diese Aufgabe gemäß der Erfindung dadurch gelöst, daß die Dichtelemente des Saugschlitzes als miteinander verbundene am Saugkanal geführte Gliederelemente aus hitzebeständigem Material ausgebildet sind.In a device of the type mentioned at the outset, this object is achieved according to the invention in that the sealing elements of the suction slot are designed as interconnected link elements made of heat-resistant material and guided on the suction channel.

Mit den erfindungsgemäßen Gliederelementen ist in einfacher Weise eine sehr wirksame Abdichtung des Saugkanales möglich, wobei gleichzeitig das schlauchwagenbedingte öffnen und Schließen des Saugschlitzes besonders leicht und wirkungsvoll vorgenommen werden kann.With the link elements according to the invention is easier A very effective seal of the suction channel is possible, while at the same time the opening and closing of the suction slit due to the hose car can be carried out particularly easily and effectively.

Wesentlich für die Lösung der gestellten Aufgabe, d.h. für die Vermeidung der durch Dichtlippen entstehenden Probleme, ist die Abdichtung durch miteinander verbundene Gliederelemente, die je nach Ausbildung, aus den entsprechenden Materialien herstellbar sind, die jedoch nicht nur reine Dichtfunktionen aufweisen müssen, sondern auch die Bewegbarkeit der gesamten Dichtung gewährleisten müssen.Essential for the solution of the task, i.e. To avoid the problems caused by sealing lips, the seal is made by interconnected link elements which, depending on the design, can be produced from the appropriate materials, but which not only have to have pure sealing functions, but also have to ensure the mobility of the entire seal.

In für die Erfindung wesentlicher Ausgestaltung ist vorgesehen, daß die Gliederelemente in ihrer Längsrichtung verschieblich miteinander verbunden sind, wobei in weiterer Ausgestaltung vorgesehen sein kann, daß eine Längsstirnseite des Gliederelementes als den korrespondierenden stirnseiten Bereich des Nachbarelementes hintergreifend ausgebildet ist. Diese Gestaltung ermöglicht eine Saugschlitzabdeckung, die praktisch das Einströmen von Fremdluft gänzlich verhindert.In an embodiment which is essential to the invention, it is provided that the link elements are connected to one another in their longitudinal direction, and in a further embodiment it can be provided that a longitudinal end face of the link element is designed to engage behind the corresponding end area of the adjacent element. This design enables a suction slot cover, which practically completely prevents the inflow of outside air.

Als zweckmäßig hat es sich erwiesen, daß die Gliederelemente mit je einer von einer Kulissenfläche am Schlauchwagen beaufschlagbaren Laufrolle ausgerüstet sind. Diese Laufrolle wird von einem Teil am Schlauchwagen derart beaufschlagt, daß sich die einzelnen Gliederelemente bei Vorbeifahren eines Schlauchwagens zur Freigabe dessen Ansaugöffnung heben und senken.It has proven to be expedient that the link elements are each equipped with a roller which can be acted upon by a link surface on the hose trolley. This roller is so be part of the hose cart opens up that the individual link elements rise and lower when a hose cart drives past to release its suction opening.

Um die Hebung und Senkung der Gliederelemente zu ermöglichan, ist nach der Erfindung auch vorgesehen, daß der Schlauchwagen mit einer Führungsschiene zur Zwangsführung der Laufrollen an den Gliederelementen ausgerüstet ist. Diese Führungsschiene kann als einzelnes Bauteil ausgebildet sein, sie kann aber auch integrierter Bestandteil einer zum Inneren des Kanales ragenden Abdeckfläche des S-chlauchwagens gestaltet sein, in die die Laufrollen an den Gliederelementen eingreifen.In order to enable the raising and lowering of the link elements, the invention also provides that the hose trolley is equipped with a guide rail for positively guiding the rollers on the link elements. This guide rail can be designed as a single component, but it can also be designed as an integrated component of a covering surface of the tubular hose protruding toward the interior of the channel, in which the rollers on the link elements engage.

Nach der Erfindung kann auch vorgesehen sein, daß die Gliederelemente an ihrer Fußseite so gestaltet sind, daß sie in der Verschlußlage nur mit einem kleinen Bereich in ihrem Führungsprofil anliegen, was zweckmäßig durch Anfasen der Unterseite erfolgt, so daß ein entsprechendes Gliederelement Linier bzw. Punktberührung hat, wodurch Schieflauf u. dgl. vermieden wird.According to the invention it can also be provided that the link elements are designed on their foot side so that they only lie in the closed position with a small area in their guide profile, which is expediently done by chamfering the underside, so that a corresponding link element lines or point contact has what causes skew u. Like. Is avoided.

Die Erfindung eignet sich insbesondere für die Endlosführung von Schlauchwagen, was beispielsweise bei Prüfständen von Technischen Uberwachungsvereinen oder bei anderen Fertigungs- bzw. Prüfstraßen vorteilhaft ist, bei denen das zu prüfende Fahrzeug in einer Richtung in eine Prüfstraße einfährt und diese an der anderen Seite wieder verläßt, so daß die mitgeführten Schlauchwagen bei Eingang des Fahrzeuges in die entsprechende Straße aufgeklemmt werden können, mit dem Fahrzeug mitgeführt werden und dann nach Verlassen des Absaugkanales frei zurück an den Ausgangspunkt führbar sind.The invention is particularly suitable for the endless guidance of hose carts, which is advantageous, for example, on test benches of technical monitoring associations or on other production or test lines in which the vehicle to be tested is in one direction in a test retracts road and leaves it on the other side, so that the hose carts carried can be clamped into the corresponding road at the entrance of the vehicle, carried with the vehicle and then freely guided back to the starting point after leaving the suction channel.

Die Erfindung sieht zu diesem Zweck vor, daß zur Fixierung der Gliederelemente im Kanal mindestens die am Kanaleingang bzw. -ausgang angeordneten Gliederelemente mit einer Führung ausgerüstet sind, wobei es zweckmäßig sein kann, die Führung als eine in den Hohlraum des hohlprofilierten Gliederelementes eingreifende Führungsstange auszubilden.For this purpose, the invention provides that, in order to fix the link elements in the channel, at least the link elements arranged at the channel entrance or exit are equipped with a guide, whereby it may be expedient to design the guide as a guide rod engaging in the cavity of the hollow profiled link element .

Als abgewandelte Ausführungsform sieht die Erfindung vor, daß die Dichtelemente des Saugschlitzes als miteinander gelenkig verbundene am Saugkanal geführte Gliederelemente aus hitzebeständigem Material ausgebildet sind.As a modified embodiment, the invention provides that the sealing elements of the suction slot are designed as link elements made of heat-resistant material and articulatedly connected to one another on the suction channel.

Prinzipiell ist es möglich, den Saugschlitz an jeder Seite des Absaugkanales anzuordnen, beispielsweise wie beim Stand der Technik an der Unterseite und die Dichtelemente von zwei Ketten aus Gliederelementen zu bilden, die ggf. gegen Federkraft vom Schlauchwagen bewegt werden. Jedoch sieht die Erfindung in Ausgestaltung vor, daß der Saugschlitz in einer seitlichen im wesentlichen senkrechten Wand des Saugkanales angeordnet ist. Diese Ausbildung hat den Vorteil, daß lediglich eine Kette aus Gliederelementen zum Abdichten des Absaugkanales herangezogen zu werden braucht, die von Elementen am Schlauchwagen unterfahren wird und gegen die Schwerkraftsrichtung angehoben werden.In principle, it is possible to arrange the suction slot on each side of the suction channel, for example, as in the prior art on the underside, and to form the sealing elements from two chains of link elements, which may be moved against the spring force by the hose trolley. However, the invention provides in an embodiment that the suction slot in a lateral substantially vertical th wall of the suction channel is arranged. This design has the advantage that only a chain of link elements needs to be used for sealing the suction channel, which is passed under by elements on the hose trolley and raised against the direction of gravity.

In Ausgestaltung sieht zu diesem Zweck die Erfindung vor, daß der Schlauchwagen mit einem ins Innere des Schlauchkanales ragenden Saugstutzen zum Verschieben der Glieder- elemente versehen ist.In an embodiment, the invention provides for this that the hose trolley is provided with a suction nozzle protruding into the interior of the hose channel for displacing the link elements.

Besonders zweckmäßig ist es, wenn, wie dies die Erfindung vorsieht, der Saugstutzen mit die Reibung gegenüber den Gliederelementen vermindernden Mitteln versehen ist.It is particularly expedient if, as the invention provides, the suction nozzle is provided with means that reduce the friction with respect to the link elements.

Diese Mittel können gemäß der Erfindung entweder aus einer Mehrzahl von am Saugstutzen in den entsprechenden Bereichen angeordneten kleinen Rollen oder aber von einer am Saugstutzen drehbar angeordneten Laufkette gebildet sein. Die Erfindung ist aber nicht auf diese speziellen, die Reibung vermindernden Mittel beschränkt. In gleicher Weise können hier beispielsweise Kunststoffgleitlager od. dgl. vorgesehen sein oder aber der ins Innere des Saugkanales ragende Saugstutzen kann selbst drehbar in dem äußeren Teil des Schlauchwagens gelagert sein.According to the invention, these means can either be formed from a plurality of small rollers arranged on the suction nozzle in the corresponding areas or else from a running chain rotatably arranged at the suction nozzle. However, the invention is not limited to these special friction-reducing agents. In the same way, plastic plain bearings or the like can be provided here, for example, or the suction nozzle protruding into the interior of the suction channel can itself be rotatably mounted in the outer part of the hose carriage.

Besonders vorteilhaft ist es nach der Erfindung, daß die Gliederelemente als gelenkig miteinander verbundene, in Führungselementen des Saugkanals verschiebbar angeordnete, im wesentlichen kreisförmige Platten ausgebildet sind. Die Kreisform der Gliederelemente begünstigt in besonderem Maße die Flexibilität und damit das leichte Anheben des Dichtsystemes, insbesondere dann, wenn, wie dies die Erfindung auch vorsieht, der Saugstutzen querschnittlich etwa kreisabschnittförmig ausgebildet ist.It is particularly advantageous according to the invention that the link elements are designed as essentially circular plates which are connected to one another in an articulated manner and are displaceably arranged in guide elements of the suction channel. The circular shape of the link elements favors the flexibility and thus the easy lifting of the sealing system, particularly when, as the invention also provides, the suction nozzle is approximately circular in cross-section.

In abgewandelter Ausführung sieht die Erfindung vor, daß die Gliederelemente als gelenkig miteinander verbundene, in Führungselemente des Saugkanals verschiebbar angeordnete, im wesentlichen biberschwanzförmige Platten ausgerüstet sind, eine Ausgestaltung, die insbesondere bei kreisförmigem Saugstutzen vorteilhaft ist.In a modified embodiment, the invention provides that the link elements are equipped as hingedly connected, displaceably arranged in guide elements of the suction channel, essentially beaver tail-shaped plates, an embodiment which is particularly advantageous in the case of a circular suction nozzle.

Die Vorrichtung nach der Erfindung läßt sich insbesondere auch bei Prüfanlagen der technischen Uberwachungsvereine einsetzen, wobei dann ein Umlauf der Schlauchwagen ermöglicht werden muß. Durch laufendes Einfahren von Schluchwagen in unterschiedlicher Abstandsfolge besteht prinzipiell die Gefahr, daß sich die Kette aus den Gliederelementen soweit seitlich verschiebt, daß das Einfahren nachfolgender Wagen nicht mehr möglich ist. Dem trägt die Erfindung dadurch Rechnung, daß die Gliederelemente beidseitig am Ende des Absaugkanales eLastisch gelagert sind. Diese elastische Lagerung, die beispielsweise durch Spiralfederelemente od. dgl. herbeigeführt werden kann, bedingt ein Zurückfedern des Systemes nach jedem Einfahren eines Schlauchwagens.The device according to the invention can also be used, in particular, in test systems of the technical monitoring associations, in which case the tube wagons must then be able to circulate. In principle, by continuously driving in wagon trolleys in different spacing sequences, there is a risk that the chain will move laterally out of the link elements to such an extent that it will no longer be possible to drive in subsequent wagons. The invention takes this into account in that the link elements are elastically supported on both sides at the end of the suction channel are. This elastic mounting, which can be brought about, for example, by spiral spring elements or the like, causes the system to spring back each time a hose cart is retracted.

Nachdem der durch das Anheben der Gliederelemente entstehende Kurvenzug in der Regel einen geringfügig größeren Biegeradius hat als der Saugstutzen, der diese Bewegung bewirkt, entstehen zwischen Saugstutzen und unterer Kante der benachbarten Gliederelemente Öffnungen, durch die prinzipiell Fremdluft mit angesaugt werden könnte. Die Erfindung sieht daher vor, daß der Schlauchwagen mit einer parallel zum Saugschlitz verfahrbaren, die durch das Anheben der Gliederelemente entstehenden öffnungen abdekkende Dichtscheibe versehen ist, wobei der Saugstutzen durch diese Dichtscheibe hindurchgeführt ist. Diese Dichtscheibe verhindert also das Einströmen von Fremdluft, so daß die volle Saugleistung des Systemes unabhängig von Position der Schlauchwagen gewährleistet bleibt.Since the curve created by the lifting of the sectional elements usually has a slightly larger bending radius than the suction nozzle that causes this movement, openings are created between the suction nozzle and the lower edge of the adjacent sectional elements, through which outside air could in principle also be sucked in. The invention therefore provides that the hose trolley is provided with a sealing disk which can be moved parallel to the suction slot and which covers openings resulting from the lifting of the link elements, the suction nozzle being guided through this sealing disk. This sealing washer prevents the inflow of outside air, so that the full suction power of the system remains independent of the position of the hose trolley.

Besonders zweckmäßig ist es, wie dies die Erfindung ebenfalls vorsieht, wenn die Dichtscheibe Lager zur Aufnahme der Laufrollen des Schlauchwagens aufweist.It is particularly expedient, as is also provided by the invention, if the sealing disk has bearings for receiving the rollers of the hose carriage.

Diese Laufrollen sind auf Laufschienen verfahrbar, die sich zweckmäßig oberhalb und unterhalb des Saugschlitzes befinden. Die Gliederelemente sind in oberen und unteren Führungsprofilen geführt, die eine solche Größe aufweisen, daß die sich nicht überdeckenden Bereiche benachbarter Gliederelemente von Profilstegen überdeckt sind. Zweckmäßig sieht die Erfindung hier vor, daß die Führungsprofile für die Glieder-elemente und die diesen zugeordneten Laufschienen für die Schlauchwagen von je einem oberen und unteren am Absaugkanal befestigten Profil gebildet sind. Beispielsweise kann der Absaugkanal selbst aus Stahlblech od. dgl. sein, während die Führungs- und Laufprofile aus Aluminium od. dgl. gebildet sind.These rollers can be moved on rails, which are conveniently located above and below the suction slot. The link elements are in the top and bottom Guided profiles that have such a size that the non-overlapping areas of adjacent link elements are covered by profile webs. The invention expediently provides here that the guide profiles for the link elements and the associated rails for the hose trolleys are each formed by an upper and lower profile attached to the suction channel. For example, the suction channel itself can be made of sheet steel or the like, while the guide and running profiles are made of aluminum or the like.

Zum Aus- bzw. Einfahren der Schlauchwagen in den Absaugkanal sind die Absaugkanalenden mit einer Einlauf- bzw. Auslaufkammer ausgerüstet.The ends of the suction channel are equipped with an inlet and outlet chamber for extending and retracting the hose trolley into the suction channel.

Als besonders zweckmäßig hat es sich erwiesen, den Absaugkanal aus Aluminiumprofilen zu fertigen, die mit Klemmprofilen zum Kanal zusammensetzbar aneinander festlegbar sind. Durch diese Gestaltung aus einzelnen Profilen, die mit Klemmprofilen ohne andere Hilfsmittel zusammenfügbar sind, läßt sich eine sehr schnelle und zweckmäßige Fertigung erreichen. So ist es z.B. möglich, daß die Rückwand bildende Kammerprofile je nach gewünschter Querschnittsgröße in unterschiedlichen U-förmigen Abmessungen bereitzuhalten und je nach gewünschtem Produkt bei gleichprofilierten Laufwagen- und Gliederelement-Führungsprofilen unterschiedliche Kanalquerschnitte zu erstellen sind.It has proven to be particularly expedient to manufacture the suction channel from aluminum profiles, which can be attached to one another by means of clamping profiles that can be assembled to form the channel. This design of individual profiles, which can be joined together with clamping profiles without other aids, enables very rapid and expedient production. It is possible, for example, to have the chamber profiles forming the rear wall available in different U-shaped dimensions depending on the desired cross-sectional size and, depending on the desired product, with different channel crossings with the same profiled carriage and sectional element guide profiles cuts are to be created.

Die Erfindung ist nachstehend anhnd der Zeichnung beispielsweise näher erläutert. Diese zeigt in

  • Fig. 1 in perspektivischer Darstellung einen Ausschnitt aus einem Absaugkanal mit daran verfahrbar angeordneten Schlauchwagen in vereinfachter Darstellung,
  • Fig. 2 einen Schnitt durch den Absaugkanal mit angedeutetem Abluftgebläse und Laufwagen,
  • Fig. 3 eine Ansicht auf den Saugschlitz mit im wesentlichen kreisförmigen Gliederelementen,
  • Fig. 4 eine Ansicht gemäß Fig. 3 mit biberschwanzförmigen Gliederelementen,
  • Fig. 5 in perspektivischer Darstellung einen Ausschnitt aus einem Absaugkanal mit daran verfahrbar angeordnetem Schlauchwagen in vereinfachter Darstellung einer abgewandelten Ausführungsform,
  • Fig. 6 eine Aufsicht auf die Gliederelemente nach einem weiteren Ausführungsbeispiel der Erfindung,
  • Fig. 7 die Ansicht auf durch den Schlauchwagen angehobene Gliederelemente gemäß Fig. 6 in schematischer Darstellung.
The invention is explained below with reference to the drawing, for example. This shows in
  • 1 is a perspective view of a section of a suction channel with a movable hose cart arranged thereon in a simplified representation,
  • 2 shows a section through the suction duct with indicated exhaust fan and carriage,
  • 3 is a view of the suction slot with essentially circular link elements,
  • 4 is a view according to FIG. 3 with plain-link elements,
  • 5 is a perspective view of a section of a suction channel with a movable hose cart arranged thereon in a simplified representation of a modified embodiment,
  • 6 is a plan view of the link elements according to a further embodiment of the invention,
  • FIG. 7 shows the view of the link elements according to FIG. 6 raised by the hose car in a schematic illustration.

Die in den Figuren allgemein mit 1 bezeichnete Vorrichtung zum Absaugen von Schadstoffen besteht im wesentlichen aus einem beispielsweise im Bereich der Werkhallendecke einer Autoreparaturwerkstätte montierten Absaugkanal 2 mit im wesentlichen rechteckigem Querschnitt, der über eine Ansaugöffnung 3 mit einem Abluftgebläse 4 verbunden ist.The device for the extraction of pollutants, generally designated 1 in the figures, essentially consists of an extraction duct 2 with an essentially rectangular cross section, which is mounted, for example, in the area of the workshop ceiling of an auto repair workshop and is connected to an exhaust air blower 4 via an intake opening 3.

In der senkrechten Wand 5 ist der Absaugkanal 2 mit einem Saugschlitz 6 ausgerüstet, der von im wesentlichen kreisförmigen Gliederelementen 7 bzw. im wesentlichen biberschwanzförmigen Gliederelementen 8 (Fig. 4) verschlossen ist. Die scheibenförmigen Gliederelemente 7 bzw. 8 sind jeweils wechselseitig überlappend angeordnet und bei 9 bzw. 9' drehbar miteinander verbunden, beispielsweise durch eine Niete od. dgl., wobei die Gliederelemente als Scheiben aus Metall bzw. Asbestzement oder einem anderen hitzebeständigen Material gefertigt sind.In the vertical wall 5, the suction channel 2 is equipped with a suction slit 6, which is closed by essentially circular link elements 7 or essentially beaver-tail link elements 8 (FIG. 4). The disk-shaped link elements 7 and 8 are mutually overlapping and rotatably connected to each other at 9 and 9 ', for example by means of a rivet or the like, the link elements being made from metal or asbestos cement or another heat-resistant material.

Zur Führung der Gliederelemente 7 bzw. 8 ist die senkrecht verlaufende Seitenwand 5 in der aus den Fig. 1 und 2 ersichtlichen Weise profiliert, d.h. an ihrem Boden befinden sich zwei kurze Führungsstege 10, während im Kopfbereich zwei lange.Führungsstege 11 vorgesehen sind, in denen die Gliederelemente, wie sich insbesondere aus Fig. 3 und 4 ergibt, soweit angehoben werden können, daß unter ihnen ein Saugstutzen 12 bzw. 12' verschoben werden kann, wie weiter unten noch näher beschrieben werden wird.To guide the link elements 7 and 8, the vertical side wall 5 is profiled in the manner shown in FIGS. 1 and 2, ie there are two short guide webs 10 on its bottom, while in the Head area two long. Guide webs 11 are provided, in which the link elements, as can be seen in particular from FIGS. 3 and 4, can be raised to such an extent that a suction nozzle 12 or 12 'can be moved beneath them, as will be described in more detail below will be.

Zusätzlich zu den kurzen Führungsstegen 10 ist eine nach außen und oben gerichtete Laufschiene 13 im unteren Bereich bzw. im oberen Bereich der Wand 5 eine nach außen und unten gerichtete Laufschiene 14 einstückig angeformt. Auf den Laufschienen 13 und 14 laufen in Lagerböcken 15 angeordnete Laufrollen 16 (Fig. 2). Die Lagerböcke 15 sind an einer in der Ebene der senkrechten Wand 5 über die Laufrollen 16 verschiebbaren Dichtscheibe 17 befestigt, wobei der Saugstutzen 12 bzw. 12' durch die Dichtscheibe 17 hindurch in Innere des Absaugkanales 2 geführt ist, wie sich aus Fig. 2 ergibt.In addition to the short guide webs 10, an outward and upward running rail 13 is integrally formed in the lower region or in the upper region of the wall 5 an outward and downward running rail 14. Rollers 16 arranged in bearing blocks 15 run on the running rails 13 and 14 (FIG. 2). The bearing blocks 15 are fastened to a sealing disk 17 which can be displaced in the plane of the vertical wall 5 via the rollers 16, the suction connector 12 or 12 'being guided through the sealing disk 17 into the interior of the suction channel 2, as can be seen in FIG. 2 .

Der ins Innere des Absaugkanales 2 ragende Teil des Saugstutzens 12, der sich in der Gebrauchslage an Kanten der Gliederelemente 7 bzw. 8 anlegt, ist mit reibungsvermindernden Elementen versehen, beispielsweise mit kleinen Rollen 18 (Fig. 2) bzw. mit einer nicht näher dargestellten Kette 19 (Fig. 4).The part of the suction nozzle 12 which projects into the interior of the suction duct 2 and which, in the position of use, lies against the edges of the link elements 7 and 8 is provided with friction-reducing elements, for example with small rollers 18 (FIG. 2) or with one not shown in detail Chain 19 (Fig. 4).

Der Saugstutzen 12 selbst kann, wie in Fig. 3 dargestellt, im wesentlichen querschnittlich kreissegmentförmig bzw. wie in Fig. 4 dargestellt, kreisförmig ausgeführt sein. Er führt z.B. über eine Sammelkammer 20 (Fig. 1) bzw. einen Rohrkrümmer 21 (Fig. 2) zu einem nur andeutungsweise dargestellten Abgasschlauch 22, der im Fall des Einsatzes bei Pkw's oder Lkw's am Auspuff des jeweiligen Verbrennungsmotores anschließbar ist.As shown in FIG. 3, the suction nozzle 12 itself can have a substantially cross-sectional circular segment shape or as shown in Fig. 4, circular. It leads, for example, via a collecting chamber 20 (FIG. 1) or a pipe elbow 21 (FIG. 2) to an exhaust gas hose 22, which is only shown in the drawing and which, in the case of use in cars or trucks, can be connected to the exhaust of the respective internal combustion engine.

In Fig. 3 ist noch dargestellt, daß die Gliederelemente 7 bzw. 8 jeweils am Ende des Absaugkanales 2 elastisch gehalten sind, beispielsweise über eine dort andeutungsweise gezeigte Feder 24. Strichpunktiert ist in Fig. 2 weiter dargestellt, daß die Laufschienen 13 bzw. 14 über den Saugkanal hinausgeführt sein können und ggf. zuranderen Seite in Form einer Schleife führbar sind, so daß ein kontinuierliches Durchfahren durch den Absaugkanal 2 von mehreren Schlauchwagen (in Fig. 1 allgemein mit 23 bezeichnet) möglich ist.In Fig. 3 it is also shown that the link elements 7 and 8 are each held elastically at the end of the suction channel 2, for example via a spring 24 indicated there by dash-dotted lines in Fig. 2 further shows that the rails 13 and 14th can be led out over the suction channel and can optionally be guided to the other side in the form of a loop, so that a continuous passage through the suction channel 2 of several hose cars (generally designated 23 in FIG. 1) is possible.

Die Wirkungsweise der Vorrichtung ist dabei die folgende: Wird beispielsweise ein Schlauchwagen 23 in Fig. 3 von links dem Absaugkanal 2 zugeführt, so wird das erste der Gliederelemente 7 durch die Auflaufkante am Saugstutzen 12 leicht angehoben und innerhalb der Stege 11 nach oben verschoben. Das weitere Einfahren des Schlauchwagens 23 bedingt ein weiteres Anheben eines Gliederelementes und durch die Kopplung benachbarter Gliederelemente aneinander auch das Anheben benachbarter Gliederelemente. Die einzelnen Positionen sind in Fig. 1 gestrichelt dargestellt, ebenso wie in den Fig. 3 und 4.The mode of operation of the device is as follows: if, for example, a hose trolley 23 in FIG. 3 is fed to the suction channel 2 from the left, the first of the link elements 7 is raised slightly by the leading edge on the suction nozzle 12 and moved upward within the webs 11. The further retraction of the tubular carriage 23 requires a further lifting of a link element and, due to the coupling of adjacent link elements to one another, also the lifting of adjacent link elements. The individual positions are shown in dashed lines in FIG. 1, as well as in FIGS. 3 and 4.

Durch das Anheben der Gliederelemente wird oberhalb der Oberkante der Stege 10 ein gewisser Bereich (in Fig. 3 mit 25 bezeichnet) frei, durch den ggf. Fremdluft einströmen könnte. Um dies zu verhindern, ist die Dichtscheibe 17 gerade so groß, daß diese Bereiche abgedeckt sind, wie sich aus Fig. 1 ergibt. Durch die elastische Anfangs- und Endlagerung 24 der Gliederelemente 7 bzw. 8 ist ein Verklemmen einzelner Elemente aneinander bzw. ein Verschieben der Elemente zu einem Paket in einer Richtung nicht möglich, so daß unterschiedliche Schlauchwagen 23 in sehr kurzen Abständen hintereinander in den Saugkanal 2 eingeschoben werden können.By lifting the link elements, a certain area (designated 25 in FIG. 3) is cleared above the upper edge of the webs 10, through which outside air could possibly flow in. To prevent this, the sealing washer 17 is just large enough to cover these areas, as can be seen in FIG. 1. Due to the elastic initial and final bearing 24 of the link elements 7 and 8, jamming of individual elements to one another or displacement of the elements to form a package in one direction is not possible, so that different hose trolleys 23 are inserted one after the other into the suction channel 2 at very short intervals can be.

Die Stirnseiten des Absaugkanales 2 können, was nicht näher dargestellt ist, verschlossen sein, wobei lediglich die das Ein- bzw. Austreten des Saugstutzens 12 ermöglichenden Ausschnitte, beispielsweise mit Bürsten od. dgl., abgeschlossen sind, was jedoch ebenfalls nicht näher dargestellt ist.The end faces of the suction channel 2 can be closed, which is not shown in detail, whereby only the cutouts which allow the suction nozzle 12 to enter or exit, for example with brushes or the like, are closed, but this is also not shown in more detail.

In den Fig. 5 - 7 ist ein weiteres Ausführungsbeispiel der Erfindung dargestellt. Die gegenüber den Fig. 1 - 4 gleichen Elemente sind mit denselben, gestrichenen Bezugszeichen versehen.A further exemplary embodiment of the invention is shown in FIGS. 5-7. The same elements as in FIGS. 1-4 are provided with the same, deleted reference numerals.

Die Gliederelemente 7' sind jeweils wechselseitig ineinander eingreifend mit einer schwalbenschwanzförmigen Längsseite 28 einerseits und einer darin eingreifenden Längswulst 29 andererseits längsverschiebbar miteinander verbunden, wie sich insbesondere aus Fig. 6 ergibt, wobei die Gliederelemente aus Metall, Asbest-Zement oder einem anderen hitzebeständigen Material gefertigt sind. Im dargestellten Beispiel handelt es sich um Aluminium-Hohlprofile.The link elements 7 'are mutually interlocking with a dovetail-shaped longitudinal side 28 on the one hand and a longitudinal bead 29 engaging therein, on the other hand, in a longitudinally displaceable manner, as can be seen in particular from FIG. 6, the link elements being made from metal, asbestos cement or another heat-resistant material are. In the example shown, these are aluminum hollow profiles.

Zur Führung der Gliederelemente 7' ist die senkrecht verlaufende Seitenwand 5' in der aus Fig. 5 ersichtlichen Weise profiliert, d.h. an ihrem Boden befinden sich zwei kurze Führungsstege 10', während im Kopfbereich zwei lange Führungsstege 11' vorgesehen sind, in denen die Gliederelemente, wie sich insbesondere aus Fig. 7 ergibt, so weit angehoben werden können, daß hinter ihnen ein Saugstutzen 12' verschoben werden kann.To guide the link elements 7 ', the vertical side wall 5' is profiled in the manner shown in FIG. At its bottom there are two short guide webs 10 ', while in the head region two long guide webs 11' are provided, in which the link elements, as can be seen in particular from FIG. 7, can be raised so far that a suction nozzle 12 'is moved behind them can be.

Zusätzlich zu den kurzen Führungsstegen 10' ist eine nach außen und oben gerichtete Laufschiene 13' im unteren Bereich bzw. oberen Bereich der Wand 5' eine im wesentlichen C-förmig ausgebildete Laufschiene 14' einstückig angeformt.In addition to the short guide webs 10 ', an outward and upward running rail 13' is integrally formed in one piece in the lower region or upper region of the wall 5 ', an essentially C-shaped running rail 14'.

In den Laufschienen 13' bzw. 14' ist ein Schlauchwagen 23' verschieblich mit Hilfe von Laufrollen und Führungsrollen geführt, was nicht näher dargestellt ist. Der Schlauchwagen 23' weist eine Dichtscheibe 17' auf, mit der im Inneren des Saugkahals eine Führungsscheibe 30 in Verbindung steht, die mit einer Führungsschiene 31 ausgerüstet ist.In the running rails 13 'and 14', a hose carriage 23 'is slidably guided with the aid of running rollers and guide rollers, which is not shown in more detail. The Hose trolley 23 'has a sealing washer 17' with which a guide washer 30 is connected in the interior of the suction channel and is equipped with a guide rail 31.

Wie sich insbesondere aus Fig. 2 ergibt, ist jedes Gliederelement 7' mit einer ggf. kugelgelagerten Laufrolle 32 versehen, die zum Inneren des Kanales 2' gerichtet ist. Wird der Schlauchwagen 23' und damit die Führungsscheibe 30 im Inneren des Kanales verschoben, so kommen die Laufrollen 32 nacheinander mit der Führungsschiene 31 in Eingriff und bewirken durch ihre Zwangsführung das in Fig. 7 dargestellte Anheben und Absenken der seitlich geführten Gliederelemente 7' in Richtung des Doppelpfeiles 33 in Fig. 7. Die Gliederelemente 7' sind im unteren Bereich winkelförmig ausgebildet, so daß ein Auflagebereich 34 als Spitze entsteht.As can be seen in particular from FIG. 2, each link element 7 'is provided with a possibly roller-mounted roller 32 which is directed towards the interior of the channel 2'. If the hose carriage 23 'and thus the guide disk 30 are displaced in the interior of the channel, the rollers 32 come into engagement with the guide rail 31 one after the other and, by virtue of their positive guidance, bring about the raising and lowering of the laterally guided link elements 7' in the direction shown in FIG of the double arrow 33 in Fig. 7. The link elements 7 'are angular in the lower region, so that a support region 34 is formed as a tip.

Das jeweils letzte Gliederelement 7" ist mit einer Führungsstange 35 am Saugkanal gehalten, derart, daß es sich zwar in Richtung des Doppelpfeiles 33 bewegen kann, jedoch eine Verschiebung in Richtung der Fahrtbewegung des Schlauchwagens 23' verhindert.The last link element 7 "in each case is held on the suction channel with a guide rod 35 such that it can move in the direction of the double arrow 33, but prevents displacement in the direction of the travel movement of the hose carriage 23 '.

Zur weiteren Abdichtung gegen Fremdlufteinbruch sind im dargestellten Beispiel an der Dichtscheibe 17' noch Dichtrollen 36 vorgesehen, deren Breite der Breite des Saugschlitzes 6' entspricht.For further sealing against the ingress of external air, sealing rollers 36 are provided on the sealing disk 17 'in the example shown, the width of which corresponds to the width of the suction slot 6 'corresponds.

In Fig. 5 ist noch dargestellt, daß der Gesamtkanal 3' aus einzelnen Profilen gebildet ist, wobei das in seiner Größe den jeweiligen Erfordernissen anpaßbare, ggf. aus Aluminiumblech jeweils zu fertigende Rückwandprofil 37 über Klemmprofile 38 an den bei allen Ausführungen gleichgestalteten Schienenprofilen 39 bzw. 40 festlegbar ist.In Fig. 5 it is also shown that the entire channel 3 'is formed from individual profiles, the size of the rear wall profile 37, which can be adapted to the respective requirements, possibly made of aluminum sheet, via clamping profiles 38 on the rail profiles 39 and / or the same in all designs 40 can be determined.

Der Saugkanal kann mit Ein- und Auslaufschleusen 41 ausgerüstet sein, die eine Endlosbewegung mehrerer Schlauchwagen ermöglichen, was nicht näher dargestellt ist.The suction channel can be equipped with inlet and outlet locks 41, which allow an endless movement of several hose trolleys, which is not shown in more detail.

Natürlich sind die beschriebenen Ausführungsbeispiele noch in vielfacher Hinsicht abzuändern, ohne den Grundgedanken dergrfindung zu verlassen. So ist die Erfindung insbesondere nicht auf die gewählte Aufhängung des Schlauchwagens beschränkt und auch nicht auf eine spezielle Form der Gliederelemente. In gleicher Weise können auch bei horizontaler Anordnung des Saugschlitzes zwei Reihen von federbeaufschlagten Gliederelementenreihen für die Abdichtung des Saugkanales herangezogen werden. Diese Variante ermöglicht auch ein Verlegen des Absaugkanales im Fußboden. Auch ist die Erfindung nicht auf die dargestellte Schwalbenschwaz/Wulstverbindung der einzelnen Elemente eingeschränkt. Hier ist jede Art von die Längsverschiebbarkeit der Dichtlamellen ermöglichende Verbindung mit umfaßt.Of course, the described embodiments are still alter in many ways, without departing from the spirit of the g rfindung. Thus, the invention is in particular not limited to the selected suspension of the hose cart and also not to a special shape of the link elements. In the same way, two rows of spring-loaded rows of link elements can be used for sealing the suction channel even when the suction slot is arranged horizontally. This variant also allows the suction channel to be laid in the floor. The invention is also not limited to the dovetailed / bead connection of the individual elements shown. Here's every kind of includes the longitudinal displaceability of the sealing lamella connection.

Claims (18)

1. Vorrichtung zum Absaugen von festen und/oder flüssigen und/oder gasförmigen Schadstoffen, insbesondere von Abgasen aus Verbrennungsmotoren, mit einem stationär verlegten Absaugkanal (2) mit/an diesem verfahrbar angeordneten Schlauchwagen mit Abgasschlauch, wobei die Schlauchwagen (23) mit Bereichen (12) in den Absaugkanal (2) durch einen mit Dichtelementen (7,8) versehenen Saugschlitz (6) eingreifen und die Dichtelemente (7,8) durch den Schlauchwagen (23) von einer den Saugschlitz (6) abdichtenden in eine den Saugschlitz (6) freigebende Stellung bewegbar sind, dadurch gekennzeichnet, daß die Dichtelemente des Saugschlitzes (6) als miteinander verbundene, am Absaugkanal (2) geführte Gliederelemente (7, 8) aus hitzebeständigem Material ausgebildet sind.1. Device for extracting solid and / or liquid and / or gaseous pollutants, in particular exhaust gases from internal combustion engines, with a stationary suction channel (2) with / arranged on and movable on this hose cart with exhaust hose, the hose cart (23) having areas ( 12) engage in the suction channel (2) through a suction slot (6) provided with sealing elements (7, 8) and the sealing elements (7, 8) through the hose carriage (23) from a sealing slot (6) sealing the suction slot (6) into a suction slot ( 6) releasing position are movable, characterized in that the sealing elements of the suction slot (6) are designed as interconnected, on the suction channel (2) guided link elements (7, 8) made of heat-resistant material. 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Gliederelemente (7) in ihrer Längsrichtung verschieblich miteinander verbunden sind.2. Device according to claim 1, characterized in that the link elements (7) are displaceably connected to one another in their longitudinal direction. 3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß eine Längsstirnseite jedes Gliederelementes (7) als den korrespondierenden stirnseitigen Bereich des Nachbarelementes hintergreifend ausgebildet ist.3. Apparatus according to claim 1 or 2, characterized in that a longitudinal end face of each link element (7) is designed to engage behind the corresponding end area of the adjacent element. 4. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Gliederelemente (7) mit je einer von einer Kulissenfläche (31) am Schlauchwagen (23) beaufschlagbaren Laufrolle (32) ausgerüstet sind.4. Device according to one of the preceding claims, characterized in that the link elements (7) with each a roller (32) which can be acted upon by a link surface (31) on the hose trolley (23). 5. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß der Schlauchwagen (23) mit einer Führungsschiene (31) zur Zwangsführung der Laufrollen (32) an den Gliederelementen (7) ausgerüstet ist.5. Device according to one of the preceding claims, characterized in that the hose carriage (23) is equipped with a guide rail (31) for positive guidance of the rollers (32) on the link elements (7). 6. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß zur Fixierung der Gliederelemente (7) im Kanal (2) mindestens die am Kanaleingang bzw. -ausgang angeordneten Gliederelemente mit einer Führung (35) ausgerüstet sind.6. Device according to one of the preceding claims, characterized in that for fixing the link elements (7) in the channel (2) at least the link elements arranged at the channel entrance or exit are equipped with a guide (35). 7. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Dichtelemente des Saugschlitzes (6) als miteinander gelenkig verbundene am Saugkanal (2) geführte Gliederelemente (7,8) aus hitzebeständigem Material ausgebildet sind.7. The device according to claim 1, characterized in that the sealing elements of the suction slot (6) are designed as articulated with each other on the suction channel (2) guided link elements (7,8) made of heat-resistant material. 8. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß der Saugschlitz (6) in einer seitlichen im wesentlichen senkrechten Wand (5) des Saugkanals (2) angeordnet ist.8. Device according to one of the preceding claims, characterized in that the suction slot (6) is arranged in a lateral substantially vertical wall (5) of the suction channel (2). 9. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß der Schlauchwagen (23) mit einem ins Innere des Saugkanales (2) ragenden Saugstutzen (12) zum Verschieben der Gliederlemente (7,8) versehen ist.9. Device according to one of the preceding claims, characterized in that the hose cart (23) with egg nem in the interior of the suction channel (2) projecting suction nozzle (12) for moving the link elements (7,8) is provided. 10. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß der Saugstutzen (12) mit die Reibung gegenüber den Gliederelementen (7,8) vermindernden Mitteln (18,19) versehen ist.10. Device according to one of the preceding claims, characterized in that the suction nozzle (12) is provided with means (18, 19) which reduce the friction with respect to the link elements (7, 8). 11. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Gliederelemente als gelenkig miteinander verbundene, in Führungselementen (10,11) des Saugkanales (2) verschiebbar angeordnete, im wesentlichen kreisförmige Platten (7) ausgebildet sind.11. Device according to one of the preceding claims, characterized in that the link elements are designed as hinged, in circular elements (10,11) of the suction channel (2) slidably arranged, substantially circular plates (7). 12. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Gliederelemente als gelenkig miteinander verbundene, in Führungselementen (10, 11) des Saugkanales (2) verschiebbar angeordnete, im wesentlichen biberschwanzförmige Platten (8) ausgebildet sind.12. Device according to one of the preceding claims, characterized in that the link elements are designed as hingedly connected, in guide elements (10, 11) of the suction channel (2) slidably arranged, substantially beaver tail-shaped plates (8). 13. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Gliederelemente (7,8) beidseitig am Ende des Saugknales elastisch gelagert sind.13. Device according to one of the preceding claims, characterized in that the link elements (7,8) are elastically mounted on both sides at the end of the suction cup. 14. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß der Schlauchwagen (23) mit einer parallel zum Saugschlitz (6) verfahrbaren die durch das Anheben der Gliederelemente (7,8) entstehenden Öffnungen (25) abdeckenden Dichtscheibe (17) versehen ist, wobei der Saugstutzen (12) durch diese Dichtscheibe (17) hindurchgeführt ist.14. Device according to one of the preceding claims, there characterized in that the hose trolley (23) is provided with a sealing disk (17) which can be moved parallel to the suction slot (6) and covers the openings (25) created by the lifting of the link elements (7, 8), the suction nozzle (12) passing through this Sealing disc (17) is passed. 15. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Dichtscheibe (17) Lager (15) zur Aufnahme der Laufrollen (16) des Schlauchwagens (23) aufeist.15. Device according to one of the preceding claims, characterized in that the sealing washer (17) bearing (15) for receiving the rollers (16) of the hose carriage (23). 16. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Führungsprofile (10 bzw. 11) für die Gliederelemente (7,8) und die diesen zugeordneten Laufschienen (13 bzw. 14) für die Schlauchwagen (23) von je einem oberen und unteren am Absaugkanal befestigten Profil gebildet sind.16. Device according to one of the preceding claims, characterized in that the guide profiles (10 and 11) for the link elements (7,8) and the associated rails (13 and 14) for the hose trolley (23) each have an upper and lower profile attached to the suction channel are formed. 17. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Schlauchwagen (23) auf einer Endlosschiene unter Zwischenschaltung des mit Ein-und Ausgangsschleusen versehenen Absaugkanales (2) geführt sind.17. Device according to one of the preceding claims, characterized in that the hose car (23) are guided on an endless rail with the interposition of the suction channel (2) provided with inlet and outlet locks. 18. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß der Absaugkanal (2) aus Aluminium-Profilen gefertigt ist, die mit Klemmprofilen zum Kanal zusammensetzbar aneinander festlegbar sind.18. Device according to one of the preceding claims, characterized in that the suction channel (2) made of aluminum nium profiles is manufactured, which can be assembled together with clamping profiles to form a duct.
EP80102546A 1979-07-14 1980-05-09 Device for extracting harmful solid, liquid or gaseous materials, especially for exhaust gases from combustion engines Expired EP0022456B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80102546T ATE1269T1 (en) 1979-07-14 1980-05-09 DEVICE FOR EXTRACTING SOLID AND/OR LIQUID AND/OR GASEOUS POLLUTANTS, IN PARTICULAR EXHAUST GASES FROM INTERNAL COMBUSTION ENGINES.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE2928519A DE2928519C2 (en) 1979-07-14 1979-07-14 Vehicle exhaust channel outlet for workshops and test benches - has disc seals rotatably interconnected in channel and guided to allow carriage sucker into channel slot
DE2928519 1979-07-14
DE3015129 1980-04-19
DE19803015129 DE3015129A1 (en) 1980-04-19 1980-04-19 Vehicle exhaust channel outlet for workshops and test benches - has disc seals rotatably interconnected in channel and guided to allow carriage sucker into channel slot

Publications (2)

Publication Number Publication Date
EP0022456A1 true EP0022456A1 (en) 1981-01-21
EP0022456B1 EP0022456B1 (en) 1982-06-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP80102546A Expired EP0022456B1 (en) 1979-07-14 1980-05-09 Device for extracting harmful solid, liquid or gaseous materials, especially for exhaust gases from combustion engines

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EP (1) EP0022456B1 (en)
DE (1) DE3060616D1 (en)
DK (1) DK150680C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2533997A1 (en) * 1982-10-05 1984-04-06 Nederman Bill DEVICE FOR EXHAUST GAS SUCTION DISCHARGED BY VEHICLES WITH VERTICAL EXHAUST PIPES
EP3770083A1 (en) * 2019-07-23 2021-01-27 J. Schmalz GmbH Negative pressure feeding device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3604085A1 (en) * 1985-08-24 1987-02-26 Ewald Ibens Apparatus for the suction removal of pollutants
DE102011050749B4 (en) 2011-05-31 2016-02-18 TRUMPF Maschinen Grüsch AG Processing machine, residue removal device for the processing machine, and method for removing residue in the processing machine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3478668A (en) * 1968-05-29 1969-11-18 Hawley Manufacturing Corp Traveling aspirator system with valving means
FR2137196A1 (en) * 1971-05-07 1972-12-29 Neu Sa
GB1516931A (en) * 1976-01-21 1978-07-05 Regese B Exhaust-gas extracting arrangements

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3478668A (en) * 1968-05-29 1969-11-18 Hawley Manufacturing Corp Traveling aspirator system with valving means
FR2137196A1 (en) * 1971-05-07 1972-12-29 Neu Sa
GB1516931A (en) * 1976-01-21 1978-07-05 Regese B Exhaust-gas extracting arrangements

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2533997A1 (en) * 1982-10-05 1984-04-06 Nederman Bill DEVICE FOR EXHAUST GAS SUCTION DISCHARGED BY VEHICLES WITH VERTICAL EXHAUST PIPES
GB2128323A (en) * 1982-10-05 1984-04-26 Nederman Bill P Ph Device for extracting exhaust gases from vehicles having upwardly directed exhaust pipes
EP3770083A1 (en) * 2019-07-23 2021-01-27 J. Schmalz GmbH Negative pressure feeding device

Also Published As

Publication number Publication date
DK150680C (en) 1988-01-25
DK292080A (en) 1981-01-15
DE3060616D1 (en) 1982-08-19
DK150680B (en) 1987-05-25
EP0022456B1 (en) 1982-06-30

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