DE2061338A1 - Filter-pump system for cleaning bathing pools - Google Patents

Description

DIPL-IWG. LEO FLEUCHAUG

β Munich 71.12 Dec. 1970

Mcfchiorätraße 42

My reference: St2P-479 + GH

Alfred E. Ste ^ scal 8055 Krailling On the slope 2e

Filter ~ Pump system for cleaning bathing pools

The invention relates to a filter-pump system for cleaning liquid containers, in particular bathing pools, with a suction pump _t a filter housing connected to the suction pump via a suction line and comprising a liquid filter mounted on a perforated pipe and a surface suction device that can be closed by a flap.

In such an already known filter-pump system the filter housing is designed to float and is connected to the suction pump via a flexible suction line. That buoyant filter housing comes with a flat surface skimmer provided, which has a U-shaped bead and an upward-facing suction opening is recessed within this bead owns. The surface layer to be sucked off is sucked over the edge of the surface extractor on which no bead is formed. Due to the use of a

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St2P-479 + GH

flexible suction line together with the floating filter housing the filter housing floating in the water can move on its own run, which means that the surface skimmer points in a direction from which optimal suction not possible. This difficulty means that the suction pump must be designed to be relatively strong to ensure satisfactory suction even when the surface suction device is in an unfavorable position.

There have already been small filters with relatively low pump capacity known, which can be rigidly mounted on the pool edge fc and then their surface skimmers in a shows a very specific direction. However, in most cases this is not the direction in which the suction follows the most favorable suction direction, as this depends very much on the shape of the pool and the prevailing effects on the surface of the water Depends on wind conditions.

The invention is based on the task of a filter-pump system of the type described above, in which it is possible, taking into account the water level to arrange the surface skimmer adjustable in such a way that it both with different pool shapes and different flow conditions due to the water The air flow acting on the surface causes suction of the surface layer of the water in the form of a funnel-shaped suction sector guaranteed. The special design of the surface skimmer ensure that the area of the water surface surrounding the suction opening is disturbed as little as possible by the design of the surface suction device and the flow to the suction opening is not unfavorable influenced.

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This object is achieved according to the invention in that the Suction line consists of a suction port and a suction pipe, which telescopically into one another at their junction displaceable and pivotable about the common longitudinal axis are that the other end of the suction pipe is provided with a bead and an end portion over which the The filter housing is rotatably fitted on the bead ^ and that the surface skimmer by one in a known manner the filter housing is formed at the top closing suction cover, the suction opening can be closed with a rigid trim flap is.

A filter-pump system built according to the characteristics of the invention has the advantage that, on the one hand, due to the telescopic connection of the intake connection with the intake pipe the filter housing comprising the surface skimmer to a relatively wide extent at different heights of the The water level in the bathing pool is easy to adjust. On the other hand, by pivoting the intake pipe accordingly opposite the suction port and a twisting of the filter housing and thus the suction cover on the suction pipe the suction opening can easily be adjusted in the direction in which the water surface, e.g. taking into account the incoming air flow, can be optimally extracted. This setting option also leaves it compared to known pump-filter systems to install them firmly in a convenient place on the edge of the pool, since now When the wind flow changes, the filter-pump system no longer has to adapt to changed conditions at different Places on the edge of the pool must be arranged. This adaptation to the changing conditions for optimal In the filter-pump system according to the invention, suction can be achieved by simply pivoting the suction pipe or Twisting of the filter housing. Another advantage

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St2T ~ 4794 GII

the invention also consists in the fact that the special design of the surface skimmer and the use
a rigid floating flap to close the suction opening, the water surface in the area around the suction opening is no longer adversely affected and, on the other hand, a very thin surface layer in the form of a wide funnel-shaped suction sector is sucked off. This makes it possible to ensure perfect surface suction even with low pump capacities, which means that the filter-pump system is cheaper to manufacture.

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The invention is explained, for example, with reference to the drawing. Show it:

1 shows a partial pump system for cleaning liquid sb ehalts what, in particular bathing pool according to the invention; ■

FIG. 2 shows a section along the line 2-2 of FIG. 1.

The in FIg. 1 shown filter-pump system comprises a Pump 1 with a right-angled bent suction nozzle 2, which through an opening in a honing plate 3 downwards runs. One side of an intake pipe 4 bent into a U-shape is slipped onto the lower end of the intake connector 2 and telescopic on this part of the intake manifold movable. The other side of the suction pipe 4 protrudes from below into a pot-like filter housing 5 · The filter housing 5 is provided in the bottom surface with an opening from which a collar 6 extends downward. Inside the filter housing is etvia in the extension of the collar 6 a pipe 7 »which is provided with slots or bores and Over which a filter 8, preferably made of porous plastic, is pushed. The one protruding into the filter housing Part of the intake pipe 4 is provided with a bead 9 on which the collar 6 of the filter housing is plugged together State. The end of the end protruding into the pipe 7

suction pipe 4 tapers slightly conically, so that the attachment the filter housing on the suction pipe 4 does not cause any difficulties.

The filter housing 5 is at the top with a serving as a suction body Lid 11 closed. This suction cover 11 is provided with a hood-like bulge, which consists of the cut

- 5- - representation

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representation enjoyed Fig. 2 can be seen. The suction opening 12, which is preferably rectangular, is provided on the front side of this bulge. Behind this suction opening 12, a flap I7 is attached along the lower aunt of the suction opening, which at the upper end running parallel to the upper edge of the suction opening carries a floating body 18 or merges into one. This floating body 18 is preferably shaped in such a way that it adapts to the upper rounding of the suction cover 11 in the closed position of the flap Y].

The suction cover 11 placed on the upper cylindrical opening of the filter housing 5 k is preferably connected to the filter housing locked by a bayonet lock. On the outside of the collar that extends over the filter housing the suction cover 11 eyelets 16 are arranged, in which a hook engages at the upper end of an elastic band 13, which with a cuff 14 on the transverse end part of the U-shaped Suction pipe 4 is held. At the top of the rubber, zuges 13 a float I5 is attached.

In use, the filter-pump system is set up on the edge of the pool with the mounting plate 3 to clean a bathing pool.First, the elastic band is loosened and the filter housing is ^{removed from the suction pipe L} V , so that initially only the suction pipe ψ is immersed in the water. The filter housing 5 is now placed on the suction pipe 4, the collar S on the bottom surface of the filter housing being pushed over the conical part of the suction pipe until it rests on the bead 9. In this position, the suction pipe, which is initially telescoped together with the suction nozzle, can be moved downwards by a slight pivoting movement and a downward pressure until the water level is approximately half the height of the suction opening on the suction cover 11. In this position it is possible to do this on the

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wheel

Bead 9 with the collar 6 seated filter housing in such a way turn the suction opening into the one for suctioning the The water surface looks the most favorable direction. In this position, due to the floating body 15 is the floating Elastic cord 13 is hooked into the eyelet 16 assigned to the desired position / and offers sufficient security that the filter housing, which sits loosely on the bead 9, does not attempt to float up due to unfavorable water movement. Due to the favorable specific weight ratios, the elastic band 13 only needs to exert a slight pull, i.e. to be only slightly shorter than the distance from the cuff 14 to one of the eyelets in the unstretched state 16.

Due to the telescopic design of the connection point between the suction port 2 and the suction pipe 4-, the suction pipe 4 also still around the connection point extending longitudinal axis is pivotable, and further by the loose seating of the filter housing on the bead 9, it is possible, to arrange the filter housing in the pool so that the suction opening is on the one hand exactly at the right height with respect to the water level and on the other hand in the for the funnel-shaped suction of the water surface looks the most favorable direction. These precautions also make it possible to keep the location of the filter-pump system at the edge of the pool unchanged and still use the filter body, e.g. align with the suction opening in the case of changing directions of the incoming winds, so that an optimal suction the one driven by the wind in a certain sighting upper water layer is possible. Due to the conical design of the En 3 es deo protruding into the filter housing Intake pipe 4, the filter housing can simply also below of the water level placed on the suction pipe. The telescopic connection of the suction nozzle with the suction pipe also makes it possible to open the suction opening through a

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telescopic displacement of the two tubes to each other the most favorable immersion depth when the water level changes to adjust.

By using a per se rigid flap 17, the only along the lower longitudinal edge of the suction opening number 12 is arranged pivotably, results in a funnel-shaped suction sector, in which a relatively flat surface area is perfectly suctioned, itself if the intake port, not adjusted to an optimal pitch is. This causes that even with a low pump power one compared to systems with · the same performance Much better suction is obtained, the fact being has a particularly favorable effect that the part of the Absangdeckels protruding above the water surface because of its rounded shape Fora and the comparatively small one, through this one Part of the disturbed area of the water surface does not have an unfavorable influence on the flow to the suction opening.

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Claims (3)

St2P-479 + fiH Patent claims Filfcer-Piaapenanlage for leaning liquid containers, especially bathing pools with a suction pump, one connected to the suction pump via a suction line Filter housing, which has a liquid filter mounted on a perforated tube and a through comprises a flap closable surface skimmer, characterized in that the Suction line consists of a suction port (2) and a suction pipe (4-), which are at their junction Can be telescoped into one another and pivoted about the common longitudinal axis that the other The end of the suction pipe is provided with a bead (9) and an end section over which the filter housing (5) resting on the bead is rotatably plugged, and that the surface skimmer from a known Way the filter housing above closing suction. lid (11) is formed, the suction opening (12) can be closed with a start floating flap (17). 2. Filter-pump system according to claim l _t, characterized in that the end portion of the suction pipe (4) is conical. 3. Filter-pump system according to claim 1, characterized in that the suction cover is a hood-like Has bulge on which the suction opening (12) is attached. 209829/0053 JlO Blank page