EP0031112A1 - Apparatus for dewatering surface soils - Google Patents

Apparatus for dewatering surface soils Download PDF

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Publication number
EP0031112A1
EP0031112A1 EP80107890A EP80107890A EP0031112A1 EP 0031112 A1 EP0031112 A1 EP 0031112A1 EP 80107890 A EP80107890 A EP 80107890A EP 80107890 A EP80107890 A EP 80107890A EP 0031112 A1 EP0031112 A1 EP 0031112A1
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EP
European Patent Office
Prior art keywords
roller
suction
floor
foam layer
valve
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Granted
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EP80107890A
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German (de)
French (fr)
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EP0031112B1 (en
Inventor
Franz Messner
Adolf Unterwaditzer
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Unterwaditzer Adolf
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Unterwaditzer Adolf
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Publication of EP0031112A1 publication Critical patent/EP0031112A1/en
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
    • E01H1/10—Hydraulically loosening or dislodging undesirable matter; Raking or scraping apparatus ; Removing liquids or semi-liquids e.g., absorbing water, sliding-off mud
    • E01H1/108—Removing liquids or semi- liquids, e.g. absorbing rain water, sucking-off mud

Definitions

  • the invention relates to a device for draining floor areas, in particular for draining sandy floor areas such as tennis courts, sand tracks and the like. with a suction element, which is connected to a water separator and a pump via a suction line.
  • Such a device is described for example in GB-PS 1 033 500. It consists of a perforated, hollow metal roller, which is mounted on a chassis and can be rolled on the surface to be drained.
  • This undercarriage carries a water tank which is connected on the one hand to a suction pump and on the other hand to a suction nozzle arranged on the floor inside the metal roller and directly above its plant area. The water penetrating through the perforations into the metal roller during operation is captured by the suction nozzle and conveyed into the water tank.
  • such a device has only a very limited area of application. It can only be used for the drainage of soils that are either solid Show surface or that are overgrown with grass. This is because, for example, with sandy water, soil components penetrate into the roller with the water, are gripped by the suction nozzle and are conveyed into the water tank. This is exacerbated by the fact that the air speed in the nozzle must be relatively high.
  • the invention was therefore based on the object to improve a device of the type mentioned in such a way that rapid drainage is possible regardless of the surface quality of the floors without removing material from the floor.
  • the suction element has a filter covering the suction opening.
  • This measure does not prevent sand or soil particles from entering the suction line by holding the sand particles to a filter layer, but rather enables the suction opening to be enlarged and thus the suction speed of the air or water to drop below that value. where the sand particles are carried away.
  • the use of a filter layer the Filter openings are smaller than the particle sizes would not be possible because such a filter layer would be installed very quickly.
  • an open-pore, elastic foam is used as the filter, the specific weight of which is preferably in a range from 20 to 40 kg / m. This foam enables particularly effective drainage using a very large suction opening.
  • the suction element has a bowl-shaped hollow body which communicates with the suction line and whose open surface facing the bottom is closed by a foam sheet forming the filter.
  • the suction element has, as is known per se, a cylindrical, perforated roller, the jacket of which is covered with an open-pore foam layer.
  • Hiebei is advantageously provided if the roller is supported on the floor by means of wheels arranged on both sides, the foam layer in the support area on the floor being compressed by a predetermined amount.
  • a squeeze roller compressing the foam layer is arranged on the area of the roller opposite the support area, and that a collecting trough communicating with the suction line is arranged within the roller. Furthermore, it is advantageous if the inside of the roll shell is provided with axially extending driver blades.
  • the suction line can be alternately connected to the bottom connections of two collecting tanks as water separators via a first valve, the valve connecting the respective free bottom connection to a pump-off line, and that a valve that is coupled to the first valve second valve alternately connects a further connection of the collecting tanks with the supply air and exhaust air connection of the air pump.
  • Fig. 1 shows the cross section of a first embodiment of the suction element, for floor areas covered with deeper puddles of water
  • Fig. 2 shows an embodiment of the suction element for large floor areas
  • Fig. 3 is a diagram of the entire device.
  • a suction element 1 which is particularly suitable for the drainage of sandy bottom surfaces covered with relatively deep puddles, such as tennis courts, sand tracks and the like. is suitable. It consists of a bowl-shaped hollow body 4, to the top of which a suction line 2 is connected. The hollow body 4 is supported on the floor by spacer feet, and its open surface facing the floor is closed by an elastic, open-pore foam sheet 3. If the suction line 2 is now connected to the suction connection of an air pump, the water 22 on the floor penetrates into the foam plate and rises in it until it is entrained in the suction line 2 due to the high air speed.
  • the rate of penetration of the water 22 into the foam sheet is not so great that soil particles are carried along or flushed with it. Particles already suspended in water are also in the foam plate 3 discontinued.
  • the interaction of the capillary force of the filter layer 3 with the negative pressure in the bowl-shaped body 4 is therefore essential for the effect according to the invention.
  • FIG. 2 shows an embodiment of the suction element 1 according to the invention, which is particularly suitable for draining large floor areas covered with relatively thin layers of water.
  • the suction element 1 consists of a cylindrical roller 6, the jacket of which is provided with through openings 7 for the water and is covered with an open-pore, elastic foam layer 3.
  • a squeeze roller 9 is arranged on the top of the roller and compresses the foam layer 3.
  • a collecting trough 10 is provided below the pinch roller and communicates with a suction line 2 running coaxially with the roller 6.
  • the inside of the jacket of the cylindrical roller 6 is provided with axially extending driver blades 11, which are arranged in pairs that diverge radially inwards.
  • the roller 6 is also supported on the floor by way of impellers 8 arranged on both sides, so that the foam layer in the support area on the floor is compressed by a predetermined amount.
  • Urgent water is also conveyed by the driving scoops 11 up to the collecting trough 10 and discharged into it. Due to the paired arrangement of the driver blades, the roller 6 can be used for drainage in any direction by means of the handle 12.
  • the diameter of the roller is greater than approximately 300 mm.
  • favorable values for the thickness of the foam layer are about 40 mm, while the pressure in the area of the system should be about 15 mm.
  • the specific weight of the foam is advantageously about 2 0 - 4 0 k g / m 3 .
  • FIG. 3 Is shown in Fig. 3 is a scheme of the device according to the invention, wherein the suction element 1 is connected via a suction pipe 2 with a 'pumping means 14 which enables a continuous drainage of large floor surfaces.
  • This pump device can be designed as a mobile, mobile device. However, it is also possible to arrange the pump device 14 in a stationary manner and to install suction lines on the places to be drained, which could then be coupled to the suction elements 1.
  • the pump device 14 has two collecting tanks 18 and 19 as water separators. Each of the collecting tanks is provided with its own connection 16 and 17 and can be switched alternately to the suction line 2 and to a pumping hose 20 via a multi-way valve 15. The collecting tanks 18 and 19 can alternately be connected to the supply air and exhaust air connection of an air pump 24 via a second multi-way valve 21.
  • the two valves 15 and 21 are actuated by a time control device 23. In operation, the timing device 23 controls the two valves 15 and 21 for a predetermined time in the position shown, so that the suction line 2 touches the floor circuit 16 of the water tank 18 is connected. On the other hand, this water tank '18 is connected to the suction connection of the air pump 24.
  • the water contained in the air flowing through the suction line 2 is deposited in the collecting tank 18.
  • the pressure connection of the air pump 24 is connected to the water tank 19, while the bottom connection 17 of this water tank is connected to the pumping line 20 via the valve 15.
  • the time control device 23 switches over the two valves 15 and 21, so that the collecting tank 19 is now filled with water while the collecting tank 18 is emptied.
  • the pump device 14 according to the invention can therefore find its end with relatively small water tanks.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Filtration Of Liquid (AREA)

Abstract

Eine Vorrichtung zum Entwässern von sandigen Bodenflächen wie Tennisplätzen od. dgl. besteht aus einem Saugelement (1), welches über eine Saugleitung (2) mit einem Wasserabscheider und einer Pumpe verbunden ist. Um zu verhindern, daß während des Entwässerns Sandschichten abgetragen werden, bzw. Sandteile mitgerissen werden, weist das Saugelement (1) eine relativ große Saugöffnung auf, die mit einem offenporigen, elastischen Schaumstoff (3) abgedeckt ist.A device for draining sandy floor surfaces such as tennis courts or the like consists of a suction element (1) which is connected to a water separator and a pump via a suction line (2). In order to prevent layers of sand from being removed or parts of sand being carried away during dewatering, the suction element (1) has a relatively large suction opening which is covered with an open-pore, elastic foam (3).

Description

Die Erfindung betrifft eine Vorrichtung zum Entwässern von Bodenflächen, insbesondere zum Entwässern von sandigen Bodenflächen wie Tennisplätzen, Sandbahnen u.dgl. mit einem Saugelement, welches über eine Saugleitung mit einem Wasserabscheider und einer Pumpe verbunden ist.The invention relates to a device for draining floor areas, in particular for draining sandy floor areas such as tennis courts, sand tracks and the like. with a suction element, which is connected to a water separator and a pump via a suction line.

Eine solche Vorrichtung ist beispielsweise in der GB-PS 1 033 500 beschrieben. Sie besteht aus einer perforierten, hohlen Metallwalze, welche an einem Fahrgestell montiert ist und auf der zu entwässernden Fläche abgerollt werden kann. Dieses Fahrgestell trägt einen Wassertank, welcher einerseits mit einer Saugpumpe und andererseits mit einer innerhalb der Metallwalze und unmittelbar über deren Anlagenbereich am Boden angeordneten Ansaugdüse verbunden ist. Das im Betrieb durch die Perforationen in die Metallwalze eindringende Wasser wird von der Ansaugdüse erfaßt und in den Wassertank befördert.Such a device is described for example in GB-PS 1 033 500. It consists of a perforated, hollow metal roller, which is mounted on a chassis and can be rolled on the surface to be drained. This undercarriage carries a water tank which is connected on the one hand to a suction pump and on the other hand to a suction nozzle arranged on the floor inside the metal roller and directly above its plant area. The water penetrating through the perforations into the metal roller during operation is captured by the suction nozzle and conveyed into the water tank.

Eine derartige Vorrichtung hat jedoch nur ein sehr beschränktes Anwendungsgebiet. Sie kann nur zur Entwässerung von solchen Böden verwendet werden, die entweder eine feste Oberfläche aufweisen oder die mit Gras bewachsen sind. Dies liegt daran, daß beispielsweise bei sandigen Bodenflächen mit dem Wasser auch Bodenbestandteile in die Walze eindringen, von der Ansaugdüse erfaßt und in den Wassertank befördert werden. Verschärfend wirkt sich hiebei aus, daß die Luftgeschwindigkeit in der Düse relativ groß sein muß.However, such a device has only a very limited area of application. It can only be used for the drainage of soils that are either solid Show surface or that are overgrown with grass. This is because, for example, with sandy water, soil components penetrate into the roller with the water, are gripped by the suction nozzle and are conveyed into the water tank. This is exacerbated by the fact that the air speed in the nozzle must be relatively high.

Für die Entwässerung von sandigen Bodenflächen ist es auch bekannt geworden, mit einem Schwamm bezogene Walzen zu verwenden, wobei das vom Schwamm aufgesaugte Wasser von einer bezogen zur Laufrichtung an der Hinterseite der Walze angeordneten Quetschrolle in eine Wanne ausgedrückt wird. Auch hier zeigt sich jedoch, daß der auf der Oberfläche der Schwammrolle anhaftende, vom Boden abgenommene Sand mit in die Auffangwanne befördert wird. Dies ist insbesondere deshalb ein gravierender Nachteil, weil eben an jenen Oberflächenbereichen des Bodens, an denen Wasserpfützen aufgrund von Vertiefungen liegen bleiben, bei der Entwässerung stets weitere Sandschichten entfernt werden.For the drainage of sandy floor surfaces, it has also become known to use rollers covered with a sponge, the water absorbed by the sponge being expressed into a trough by a squeeze roller arranged at the rear of the roller in relation to the direction of travel. Here too, however, it can be seen that the sand adhering to the surface of the sponge roller and removed from the floor is also conveyed into the collecting trough. This is particularly a serious disadvantage because precisely those surface areas of the floor where puddles of water remain due to depressions are always removed with further layers of sand during drainage.

Der Erfindung lag demgemäß die Aufgabe zugrunde, eine Vorrichtung der eingangs genannten Gattung dahingehend zu verbessern, daß unabhängig von der Oberflächenbeschaffenheit der Böden eine rasche Entwässerung möglich ist, ohne dabei Material vom Boden abzutragen.The invention was therefore based on the object to improve a device of the type mentioned in such a way that rapid drainage is possible regardless of the surface quality of the floors without removing material from the floor.

Erfindungsgemäß ist hiezu vorgesehen, daß das Saugelement einen die Saugöffnung abdeckenden Filter aufweist.According to the invention it is provided that the suction element has a filter covering the suction opening.

Diese Maßnahme verhindert das Eindringen von Sand bzw. Bodenpartikeln in die Saugleitung nun nicht etwa dadurch, daß die Sandpartikel an einer Filterschicht festgehalten werden, sondern sie ermöglicht eine Vergrößerung der Saugöffnung und damit eine Absenkung der Ansauggeschwindigkeit der Luft bzw. des Wassers unter jenen Wert, bei dem die Sandpartikel mitgerissen werden. Der Einsatz einer Filterschicht, deren Filteröffnungen kleiner als die Partikelgrößen sind, wäre ja schon deshalb nicht möglich, da eine solche Filterschicht sehr rasch verlegt werden würde.This measure does not prevent sand or soil particles from entering the suction line by holding the sand particles to a filter layer, but rather enables the suction opening to be enlarged and thus the suction speed of the air or water to drop below that value. where the sand particles are carried away. The use of a filter layer, the Filter openings are smaller than the particle sizes would not be possible because such a filter layer would be installed very quickly.

Als besonders vorteilhaft hat es sich erwiesen, wenn als Filter ein offenporiger, elastischer Schaumstoff verwendet wird, dessen spezifisches Gewicht vorzugsweise in einem Bereich von 20 - 40 kg/m liegt. Dieser Schaumstoff ermöglicht eine besonders effektive Entwässerung mittels einer sehr großflächigen Saugöffnung.It has proven to be particularly advantageous if an open-pore, elastic foam is used as the filter, the specific weight of which is preferably in a range from 20 to 40 kg / m. This foam enables particularly effective drainage using a very large suction opening.

Für größere, pfützenartige Wasserflächen ist es vorteilhaft, wenn das Saugelement einen schalenförmigen, mit der Saugleitung kommunizierenden Hohlkörper aufweist, dessen offene dem Boden zugewandte Fläche von einer den Filter bildende Schaumstoffplatte verschlossen ist.For larger, puddle-like water surfaces, it is advantageous if the suction element has a bowl-shaped hollow body which communicates with the suction line and whose open surface facing the bottom is closed by a foam sheet forming the filter.

Hiebei ist es günstig, wenn sich der schalenförmige Hohlkörper über Distanzfüße am Boden abstützt. Für große Bodenflächen mit relativ dünnen Wasserschichten weist das Saugelement wie an sich bekannt eine zylinderförmige, perforierte Walze auf, deren Mantel mit einer offenporigen Schaumstoffschichte überzogen ist.It is favorable if the bowl-shaped hollow body is supported on the floor via spacer feet. For large floor areas with relatively thin water layers, the suction element has, as is known per se, a cylindrical, perforated roller, the jacket of which is covered with an open-pore foam layer.

Hiebei ist vorteilhaft vorgesehen, wenn die Walze über beidseitig angeordnete Räder am Boden abgestützt ist, wobei die Schaumstoffschichte im Auflagebereich am Boden um ein vorbestimmtes Maß komprimiert ist.Hiebei is advantageously provided if the roller is supported on the floor by means of wheels arranged on both sides, the foam layer in the support area on the floor being compressed by a predetermined amount.

Für eine besonders effektive Entwässerung ist vorgesehen, daß an dem dem Auflagebereich gegenüberliegenden Bereich der Walze eine die Schaumstoffschichte komprimierende Quetschrolle angordnet ist, und daß innerhalb der Walze eine mit der Saugleitung kommunizierende Auffangwanne angeordnet ist. Weiters ist es günstig, wenn die Innenseite des Walzenmantels mit axial verlaufenden Mitnehmerschaufeln versehen ist.For a particularly effective drainage it is provided that a squeeze roller compressing the foam layer is arranged on the area of the roller opposite the support area, and that a collecting trough communicating with the suction line is arranged within the roller. Furthermore, it is advantageous if the inside of the roll shell is provided with axially extending driver blades.

Um einen kontinuierlichen Betrieb zu gewährleisten ist es von Vorteil, wenn die Saugleitung über ein erstes Ventil wechselweise mit den Bodenschlüssen zweier Sammeltanks als Wasserabscheider verbindbar ist, wobei das Ventil den jeweils freien Bodenanschluß mit einer Abpumpleitung verbindet, und daß ein mit dem ersten Ventil gekoppeltes, zweites Ventil je einen weiteren Anschluß der Sammeltanks wechselweise mit dem Zuluft-und Abluftanschluß der Luftpumpe verbindet.In order to ensure continuous operation, it is advantageous if the suction line can be alternately connected to the bottom connections of two collecting tanks as water separators via a first valve, the valve connecting the respective free bottom connection to a pump-off line, and that a valve that is coupled to the first valve second valve alternately connects a further connection of the collecting tanks with the supply air and exhaust air connection of the air pump.

Die Erfindung wird nachfolgend anhand von Ausführungsbeispielen näher erläutert, ohne daß dem einschränkende Bedeutung zukommen soll.The invention is explained in more detail below on the basis of exemplary embodiments, without any restrictive meaning.

Die Fig. 1 zeigt den Querschnitt eines ersten Ausführungsbeispieles des Saugelementes, für mit tieferen Wasserpfützen bedeckte Bodenflächen, die Fig. 2 ein Ausführungsbeispiel des Saugelementes für große Bodenflächen und die Fig. 3 ein Schema der gesamten Vorrichtung.Fig. 1 shows the cross section of a first embodiment of the suction element, for floor areas covered with deeper puddles of water, Fig. 2 shows an embodiment of the suction element for large floor areas and Fig. 3 is a diagram of the entire device.

In Fig. 1 ist ein Saugelement 1 dargestellt, welches sich insbesondere zur Entwässerung von mit relativ tiefen Pfützen bedeckten, sandigen Bodenflächen, wie Tennisplätzen, Sandbahnen u.dgl. eignet. Es besteht aus einem schalenförmigen Hohlkörper 4, an dessen Oberseite eine Saugleitung 2 angeschlossen ist. Der Hohlkörper 4 stützt sich über Distanzfüße am Boden ab, und seine zum Boden gerichtete offene Fläche ist von einer elastischen, offenporigen Schaumstoffplatte 3 verschlossen. Wird nun die Saugleitung 2 mit dem Sauganschluß einer Luftpumpe verbunden, so dringt das auf dem Boden befindliche Wasser 22 in die Schaumstoffplatte ein und steigt in dieser, bis es aufgrund der hohen Luftgeschwindigkeit in der Saugleitung 2 mitgerissen wird. Die Eindringgeschwindigkeit des Wassers 22 in die Schaumstoffplatte ist jedoch nicht so groß, daß Bodenpartikelmitgenommen bzw. mitgespült werden. Bereits im Wasser in Schwebe gehaltene Partikel werden ebenfalls in der Schaumstoffplatte 3 abgesetzt. Wesentlich für den erfindungsgemäßen Effekt ist also das Zusammenwirken der Kapillarkraft der Filterschichte 3 mit dem Unterdruck im schalenförmigen Körper 4.In Fig. 1, a suction element 1 is shown, which is particularly suitable for the drainage of sandy bottom surfaces covered with relatively deep puddles, such as tennis courts, sand tracks and the like. is suitable. It consists of a bowl-shaped hollow body 4, to the top of which a suction line 2 is connected. The hollow body 4 is supported on the floor by spacer feet, and its open surface facing the floor is closed by an elastic, open-pore foam sheet 3. If the suction line 2 is now connected to the suction connection of an air pump, the water 22 on the floor penetrates into the foam plate and rises in it until it is entrained in the suction line 2 due to the high air speed. However, the rate of penetration of the water 22 into the foam sheet is not so great that soil particles are carried along or flushed with it. Particles already suspended in water are also in the foam plate 3 discontinued. The interaction of the capillary force of the filter layer 3 with the negative pressure in the bowl-shaped body 4 is therefore essential for the effect according to the invention.

In der Fig. 2 ist eine Ausführungsform des erfindungsgemäßen Saugelementes 1 dargestellt, welche insbesondere zur Entwässerung von großen, mit relativ dünnen Wasserschichten bedeckten Bodenflächen geeignet ist.FIG. 2 shows an embodiment of the suction element 1 according to the invention, which is particularly suitable for draining large floor areas covered with relatively thin layers of water.

Das Saugelement 1 besteht aus einer zylinderförmigen Walze 6, deren Mantel mit Durchtrittsöffnungen 7 für das Wasser versehen und mit einer offenporigen, elastischen Schaumstoffschichte 3 überzogen ist. An der Oberseite der Walze ist eine Quetschrolle 9 angeordnet, welche die Schaumstoffschichte 3 komprimiert. Im Inneren der Walze 6 ist unterhalb der Quetschrolle eine Auffangwanne 10 vorgesehen, welche mit einer koaxial zur Walze 6 verlaufenden Saugleitung 2 kommuniziert. Weiters ist die Innenseite des Mantels der zylinderförmigen Walze 6 mit axial verlaufenden Mitnehmerschaufeln 11 versehen, welche jeweils paarweise radial nach innen auseinanderstrebend angeordnet sind. Wie in der Fig. 3 ersichtlich, stützt sich die Walze 6 weiters über beidseitig angeordnete Laufräder 8 am Boden ab, sodaß die Schaumstoffschichte im Auflagebereich am Boden um ein vorbestimmtes Maß komprimiert ist.The suction element 1 consists of a cylindrical roller 6, the jacket of which is provided with through openings 7 for the water and is covered with an open-pore, elastic foam layer 3. A squeeze roller 9 is arranged on the top of the roller and compresses the foam layer 3. In the interior of the roller 6, a collecting trough 10 is provided below the pinch roller and communicates with a suction line 2 running coaxially with the roller 6. Furthermore, the inside of the jacket of the cylindrical roller 6 is provided with axially extending driver blades 11, which are arranged in pairs that diverge radially inwards. As can be seen in FIG. 3, the roller 6 is also supported on the floor by way of impellers 8 arranged on both sides, so that the foam layer in the support area on the floor is compressed by a predetermined amount.

Während des Betriebes herrscht im Innenraum der Walze 6 aufgrund der Verbindung mit der Saugleitung 2 Unterdruck. Die Walze wird am Boden abgewälzt und das auf demselben befindliche Wasser dringt im Auflagebereich in die Schaumstoffschichte ein. Durch die Kapillarwirkung des Schaumstoffes 3 und den verringerten Innendruck wird das Wasser bis zur Quetschrolle 9 transportiert, dort durch die Durchtrittsöffnungen 7 gedrückt und läuft in die Auffangwanne 10 ab.During operation, negative pressure prevails in the interior of the roller 6 due to the connection to the suction line 2. The roller is rolled on the floor and the water on it penetrates into the foam layer in the support area. Due to the capillary action of the foam 3 and the reduced internal pressure, the water is transported to the squeeze roller 9, is pressed there through the through openings 7 and runs into the collecting trough 10.

Bereits im Auflagebereich oder etwas später in den Innenraum dringendes Wasser wird von den Mitnehmerschaufeln 11 ebenfalls bis über die Auffangwanne 10 gefördert und dort in diese abgegeben. Durch die paarweise Anordnung der Mitnehmerschaufeln kann die Walze 6 mittels des Handgriffes 12 in beliebiger Laufrichtung zur Entwässerung eingesetzt werden.Already in the support area or a little later in the interior Urgent water is also conveyed by the driving scoops 11 up to the collecting trough 10 and discharged into it. Due to the paired arrangement of the driver blades, the roller 6 can be used for drainage in any direction by means of the handle 12.

Um zu verhindern, daß der Sand beim Entwässern durch Transport auf der Oberfläche der Schaumgummischicht 3 verlagert wird, hat es sich als günstig herausgestellt, wenn der Durchmesser der Walze größer als etwa 300 mm ist. Weiters sind günstige Werte für die Dicke der Schaumstoffschichte etwa 40 mm während die Pressung im Anlagenbereich am Boden etwa 15 mm betragen soll. Das spezifische Gewicht des Schaumstoffes beträgt vorteilhaft etwa 20 - 40 kg/m 3.In order to prevent the sand from being displaced by transport on the surface of the foam rubber layer 3 during dewatering, it has proven to be advantageous if the diameter of the roller is greater than approximately 300 mm. Furthermore, favorable values for the thickness of the foam layer are about 40 mm, while the pressure in the area of the system should be about 15 mm. The specific weight of the foam is advantageously about 2 0 - 4 0 k g / m 3 .

In Fig. 3 ist ein Schema der erfindungsgemäßen Vorrichtung dargestellt, bei welchem das Saugelement 1 über eine Saugleitung 2 mit einer'Pumpeinrichtung 14 verbunden ist, die eine kontinuierliche Entwässerung von großen Bodenflächen ermöglicht. Diese Pumpeinrichtung kann dabei als mobiles, fahrbares Gerät ausgebildet sein. Es ist jedoch ebenso möglich, die Pumpeinrichtung 14 stationär anzuordnen und auf den zu entwässernden Plätzen Saugleitungen zu verlegen, die dann mit den Saugelementen 1 verkuppelt werden könnten.Is shown in Fig. 3 is a scheme of the device according to the invention, wherein the suction element 1 is connected via a suction pipe 2 with a 'pumping means 14 which enables a continuous drainage of large floor surfaces. This pump device can be designed as a mobile, mobile device. However, it is also possible to arrange the pump device 14 in a stationary manner and to install suction lines on the places to be drained, which could then be coupled to the suction elements 1.

Die Pumpeinrichtung 14 weist zwei Sammeltanks 18 und 19 als Wasserabscheider auf. Jeder der Sammeltanks ist mit einem eigenen Anschluß 16 und 17 versehen und über ein Mehrwegeventil 15 wechselweise an die Saugleitung 2 und an einen Abpumpschlauch 20 schaltbar. über ein zweites Mehrwegeventil 21 sind die Sammeltanks 18 und 19 wechselweise mit dem Zuluft-und Abluftanschluß einer Luftpumpe 24 verbindbar. Die beiden Ventile 15 und 21 werden von einer Zeitsteuereinrichtung 23 betätigt. Im Betrieb steuert die Zeitsteuereinrichtung 23 die beiden Ventile 15 und 21 für eine vorbestimmte Zeit in die dargestellte Lage, sodaß die Saugleitung 2 mit dem Bodenanschluß 16 des Wassertanks 18 verbunden ist. Dieser Wassertank' 18 steht andererseits mit dem Sauganschluß der Luftpumpe 24 in Verbindung. Das in der die Saugleitung 2 durchströmenden Luft enthaltene Wasser wird im Sammeltank 18 abgelagert. Zugleich ist der Druckanschluß der Luftpumpe 24 mit dem Wassertank 19 verbunden, während der Bodenanschluß 17 dieses Wassertanks über das Ventil 15 mit der Abpumpleitung 20 in Verbindung steht. Dadurch wird das im Sammeltank 19 enthaltene Wasser in die Abpumpleitung 20 gedrückt. Nach der vorbestimmten Zeit schaltet die Zeitsteuereinrichtung 23 die beiden Ventile 15 und 21 um, sodaß nunmehr der Sammeltank 19 mit Wasser gefüllt wird, während sich der Sammeltank 18 entleert. Die erfindungsgemäße Pumpeinrichtung 14 kann daher mit relativ kleinen Wassertanks das Auslangen finden.The pump device 14 has two collecting tanks 18 and 19 as water separators. Each of the collecting tanks is provided with its own connection 16 and 17 and can be switched alternately to the suction line 2 and to a pumping hose 20 via a multi-way valve 15. The collecting tanks 18 and 19 can alternately be connected to the supply air and exhaust air connection of an air pump 24 via a second multi-way valve 21. The two valves 15 and 21 are actuated by a time control device 23. In operation, the timing device 23 controls the two valves 15 and 21 for a predetermined time in the position shown, so that the suction line 2 touches the floor circuit 16 of the water tank 18 is connected. On the other hand, this water tank '18 is connected to the suction connection of the air pump 24. The water contained in the air flowing through the suction line 2 is deposited in the collecting tank 18. At the same time, the pressure connection of the air pump 24 is connected to the water tank 19, while the bottom connection 17 of this water tank is connected to the pumping line 20 via the valve 15. As a result, the water contained in the collecting tank 19 is pressed into the pumping line 20. After the predetermined time, the time control device 23 switches over the two valves 15 and 21, so that the collecting tank 19 is now filled with water while the collecting tank 18 is emptied. The pump device 14 according to the invention can therefore find its end with relatively small water tanks.

Es ist leicht ersichtlich, daß im Rahmen der Erfindung noch eine Vielzahl von möglichen Abänderungen denkbar sind.It is readily apparent that a large number of possible modifications are still conceivable within the scope of the invention.

Claims (10)

1. Vorrichtung zum Entwässern von Bodenflächen, insbesondere zum Entwässern von sandigen Bodenflächen wie Tennisplätzen, Sandbahnen und dgl., mit einem Saugelement, welches über eine Saugleitung mit einem Wasserabscheider und einer Pumpe verbunden ist, dadurch gekennzeichnet, daß das Saugelement (1) ein die Saugöffnung abdeckendes Filter (3) aufweist.1. Device for draining floor areas, in particular for draining sandy floor areas such as tennis courts, sand tracks and the like., With a suction element, which is connected via a suction line with a water separator and a pump, characterized in that the suction element (1) a Has filter (3) covering the suction opening. 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Filter (3) ein offenporiger, elastischer Schaumstoff ist, dessen spezifisches Gewicht vorzugsweise 20 - 40 kg/m3 beträgt.2. Device according to claim 1, characterized in that the filter (3) is an open-pore, elastic foam, the specific weight of which is preferably 20-40 kg / m 3 . 3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Saugelement (1) einen schalenförmigen, mit der Saugleitung (2) kommunizierenden Hohlkörper (4) aufweist, dessen offene Fläche von einer das Filter (3) bildenden Schaumstoffplatte verschlossen ist.3. Apparatus according to claim 1 or 2, characterized in that the suction element (1) has a bowl-shaped, with the suction line (2) communicating hollow body (4), the open surface of which is closed by a foam plate forming the filter (3). 4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß sich der schalenförmige Hohlkörper (4) über Distanzfüße (5) am Boden abstützt.4. The device according to claim 3, characterized in that the bowl-shaped hollow body (4) is supported on the floor via spacer feet (5). 5. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Saugelement (1) wie an sich bekannt eine zylinderförmige, perforierte Walze (6) aufweist, und daß der Mantel der Walze (6) mit einer offenporigen Schaumstoff schichte (3) überzogen ist.5. Apparatus according to claim 1 or 2, characterized in that the suction element (1), as known per se, has a cylindrical, perforated roller (6), and in that the jacket of the roller (6) is covered with an open-cell foam layer (3) is. 6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß die Walze (6) über beidseitig angeordnete Räder (8) am Boden abgestützt ist, wobei die Schaumstoffschichte (3) im Auflagebereich am Boden um ein vorbestimmtes Maß komprimiert ist.6. The device according to claim 5, characterized in that the roller (6) on both sides arranged wheels (8) is supported on the floor, the foam layer (3) in Support area on the floor is compressed by a predetermined amount. 7. Vorrichtung nach Anspruch 5 oder 6, dadurch gekennzeichnet, daß an dem dem Auflagebereich gegenüberliegenden Bereich der Walze (6) eine die Schaumstoffschichte (3) komprimierende Quetschrolle (9) angeordnet ist, und daß innerhalb der Walze (6) eine mit der Saugleitung (2) kommunizierende Auffangwanne (10) vorgesehen ist.7. Apparatus according to claim 5 or 6, characterized in that on the region of the roller (6) opposite the support area a foam layer (3) compressing squeeze roller (9) is arranged, and in that within the roller (6) one with the suction line (2) communicating drip pan (10) is provided. 8. Vorrichtung nach einem der Ansprüche 5, 6 und 7,dadurch gekennzeichnet, daß die Innenseite des Walzenmantels mit axial verlaufenden Mitnehmerschaufeln (11) versehen ist.8. Device according to one of claims 5, 6 and 7, characterized in that the inside of the roll shell is provided with axially extending driver blades (11). 9. Vorrichtung nach einem der Ansprüche 5 bis 8, dadurch gekennzeichnet, daß der Durchmesser der Walze (6) größer als etwa 300 mm, die Stärke der Schaumstoffschichte (3) etwa 30 - 50 mm und gegebenenfalls die Pressung der Schaumstoffschichte (3) im Anlagenbereich am Boden etwa 15 mm ist.9. Device according to one of claims 5 to 8, characterized in that the diameter of the roller (6) greater than about 300 mm, the thickness of the foam layer (3) about 30 - 50 mm and optionally the pressure of the foam layer (3) in Plant area on the floor is about 15 mm. 10. Vorrichtung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß die Saugleitung (2) über ein erstes Ventil (15) wechselweise mit den Bodenanschlüssen (16, 17) zweier Sammeltanks (18, 19) als Wasserabscheider verbindbar ist, wobei das Ventil (15) den jeweils freien Bodenanschluß (16, 17) mit einer Abpumpleitung (20) verbindet, und daß ein mit dem ersten Ventil (15) gekoppeltes, zweites Ventil (21) je einen weiteren Anschluß des Sammeltankes (18,19) wechselweise mit dem Zuluft- und Abluftanschluß der Luftpumpe (22) verbindet.10. Device according to one of claims 1 to 9, characterized in that the suction line (2) via a first valve (15) alternately with the bottom connections (16, 17) of two collecting tanks (18, 19) can be connected as a water separator, the Valve (15) connects the respective free bottom connection (16, 17) to a pump-off line (20) and that a second valve (21) coupled to the first valve (15) alternately connects each additional connection of the collecting tank (18, 19) connects to the supply air and extract air connection of the air pump (22).
EP80107890A 1979-12-19 1980-12-13 Apparatus for dewatering surface soils Expired EP0031112B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT7998/79 1979-12-19
AT799879A AT362314B (en) 1979-12-19 1979-12-19 DEVICE FOR DRAINING FLOOR AREAS

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EP0031112A1 true EP0031112A1 (en) 1981-07-01
EP0031112B1 EP0031112B1 (en) 1984-03-07

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AT (1) AT362314B (en)
DE (1) DE3066886D1 (en)

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EP0120656A1 (en) * 1983-03-16 1984-10-03 Zestful Holdings Limited Apparatus for removing water from the ground
EP0310374A2 (en) * 1987-05-06 1989-04-05 Zestful Holdings Limited Apparatus for removing water from the ground
US5080517A (en) * 1990-08-07 1992-01-14 Lynn William R Mop assembly for applying clean liquids and removing dirty liquids

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US6629333B2 (en) 2000-07-20 2003-10-07 Kurt E. Bolden Device and method for liquid removal from carpet
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US7789090B2 (en) * 2007-02-02 2010-09-07 Hai Minh Tran Fingernail polish removing device
CN112064560A (en) * 2020-08-10 2020-12-11 黄新金 Ponding processing apparatus is used to town road cleanup crew
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GB942338A (en) * 1961-03-29 1963-11-20 Forge Craft Ltd Improvements in or relating to moisture collecting apparatus for removing moisture from a surface over which said apparatus is passed
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US5080517A (en) * 1990-08-07 1992-01-14 Lynn William R Mop assembly for applying clean liquids and removing dirty liquids

Also Published As

Publication number Publication date
US4386873A (en) 1983-06-07
AT362314B (en) 1981-04-27
DE3066886D1 (en) 1984-04-12
EP0031112B1 (en) 1984-03-07
ATA799879A (en) 1980-09-15

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