EP1908961B1 - Pond pump with two suction ducts - Google Patents

Abstract

The pump (1) has a housing and a pump device (5) arranged within the housing. A suction connection (8) and a pressure output (10) stay in fluid connection with each other. The suction connection opens out in two suction channels (14, 16) that are separated from each other, where the channel (14) sucks fluid through a housing wall and the channel (16) sucks the fluid existing outside the housing. The channels are arranged opposite to the housing and a flow distribution device (18) is provided to divide a suction volume of the suction connection on the suction channels.

Description

The present invention relates to a pond pump. Such pond pumps usually have a housing, wherein within the housing, a pump device is provided which transports liquid from a suction to a pressure port. Such pond pumps are positioned at the bottom of a pond or basin. The housing of these pumps acts as a coarse filter and has openings, for example in the form of slots or holes through which water can penetrate into the housing interior, but not coarser impurities such as leaves or larger particles.

The passing through the housing into the interior of the housing water is pumped through the pump means, d. H. a suction port, sucked and output via a pressure port. This, however, get smaller impurities through the openings in the housing interior and thus in the actual pump cycle. Therefore, it is necessary at regular intervals to clean the pump device itself. In addition, a further suction port is provided to suck contaminants from the surface of the pond, wherein the liquid does not pass through the housing wall.

The DE 100 43 668 A1 describes a submersible pump. This submersible pump has a first controlled pump element and a second controlled pump element, wherein within a pump housing connected to the first pump element suction port is formed, which sucks in operation water from the environment of the pump through an all-round filter. In addition, a suction port is formed on the pump housing, which is connected to the second pump element. By targeted control of the two pump elements, it is possible that the submersible pump can suck in a single operation, for example, the water surface. In this case, the pump has a pressure accumulator and a switching flap arranged therein, with which the flow rate from an output of the first or second pump element can be regulated.

From the DE 203 13 360 U1 a pond pump is known, which has a suction port movable relative to the housing, wherein the movement or the position of the intake nozzle relative to the housing can be controlled, which proportion of water is sucked in from the water surface and which portion is sucked in via the housing becomes. This pump thus allows adjustment of the respective flow conditions by a movement of a suction nozzle relative to the housing. However, it must be in the case of the DE 203 13 260 U1 known device to ensure that the displacement or sliding slot in which the intake manifold is moved, is sufficiently covered, so that not get rough impurities in the interior of the housing. In addition, resulting from the adjustable arrangement of the intake manifold relative to the housing disadvantages, since the pond pump can be made more stable in its entirety.

The present invention is therefore an object of the invention to provide a pond pump available, with the one hand water can be sucked both from the bottom of a pond and from the water surface, on the other hand, however, the stability of the entire pond pump is increased. In particular, to achieve the higher stability on pivoting intake manifold, which can affect the overall stability, should be dispensed with.

This is inventively achieved by a pond pump by claim 1. Advantageous embodiments and further developments are the subject of the dependent claims.

The pond pump according to the invention has a housing and a pump device arranged within the housing. Furthermore, a suction port is provided and a pressure outlet, wherein the suction port and the pressure outlet are in fluid communication with each other and wherein the suction port opens into at least two substantially separate suction channels. In this case, the first intake passage for sucking liquid through the housing wall is suitable and the second intake passage for sucking liquid located outside the housing.

According to the invention, at least the second intake passage is arranged fixedly in relation to the housing and a flow distribution device is provided, which divides an intake volume of the intake port into the intake passages.

In contrast to the above-mentioned prior art, so that the intake passage fixed to the housing whereby the stability is increased. Preferably, both intake ports are fixed relative to the housing. The pump device is advantageously provided with a motor and a control device. The first intake passage preferably ends in the interior of the housing and thus liquid is sucked through the housing or the housing wall through this intake passage.

A flow connection between the suction port and the pressure outlet means that a fluid and in particular water can flow between the suction port and the pressure outlet.

In a further preferred embodiment, the second intake passage is an intake port which extends through the housing at least in sections. In this way, it is ensured that the second channel only sucks in liquid from outside the housing. Furthermore, it would be possible to provide filter elements such as fine filters in the second intake channel.

However, it would also be possible for the second intake duct to still end inside the housing, but to have a coupling or the like, to which a hose can be plugged, which in turn projects outward with respect to the housing.

Also, intake ducts would be conceivable that end with or in the housing wall. The suction port is preferably arranged directly on the pump device.

In a further preferred embodiment, the flow distribution device is provided between the suction port and the intake ports. This flow distribution device thus distributes the flow volume to the two intake channels provided here. Thus, only the flow device or parts of the flow distribution device is movable, but not the intake channels themselves.

Preferably, the intake passages are arranged substantially perpendicular to each other. In this way, a particularly favorable flow distribution between the intake ports can be achieved.

Advantageously, the housing has openings through which liquid can enter the interior of the housing. Through these openings, the liquid passes to the first intake passage.

Particularly preferably, no openings are provided in the region of the housing in which the first intake passage is arranged. In this way it can be achieved that the liquid within the housing has to travel a certain distance in order to reach the first intake channel. But in this way certain coarse contaminants which have still passed through the openings can be prevented from entering the second intake channel. Furthermore, the flow conditions are improved by this embodiment, since the liquid is sucked uniformly over the entire housing.

In a further preferred embodiment, the flow distribution device has an actuating mechanism arranged outside the housing with which the distribution of the intake volume onto the intake passages can be controlled. This may be, for example, a knob or the like, which can reciprocate a valve body between two end positions. However, it would also be possible to control the flow distribution device by an additional motor, for example, inside the housing. In this way, in a particularly convenient embodiment, a remote control of the flow distribution device would be possible. In addition, a valve body could be provided which is displaceable, for example by means of a threaded rod.

In a preferred embodiment, the flow distribution device has a rotatable valve body with which the distribution of the intake volume to the intake ports can be controlled. It is particularly preferred that the flow distribution device in connection with the actuating mechanism and is thus manually adjustable. This valve body is preferably arranged in the region in which the intake port merges into the two intake passages. Preferably, the rotatable valve body is rotatable about a longitudinal axis of the suction port. In this way, the flow flow can be distributed from the intake port to the two intake ports.

In a further advantageous embodiment, the flow distribution device is adjustable between two end positions, wherein in one end position, the intake volume is completely sucked in via the first intake passage and in the other end position the intake volume is completely sucked in via the second intake passage. Advantageously, the flow distribution device is infinitely adjustable between these two end positions. However, it would also be possible for the flow distribution device stepped between these two end positions is adjustable.

Further advantages and embodiments will become apparent from the attached drawings:

Fig. 1

eine Ansicht einer geöffneten erfindungsgemäßen Teichpumpe;

Fig. 2a

eine Draufsicht auf eine obere Gehäusehälfte;

Fig. 2b

eine Seitenansicht der Gehäusehälfte aus Figur 2a;

Fig. 2c

eine Innenansicht einer unteren Gehäusehälfte;

Fig. 3a

einen Querschnitt der Strömungsverteilungseinrichtung;

Fig. 3b

eine obere Ansicht der Strömungsverteilungseinrichtung aus Figur 3a;

Fig. 3c

eine teilweise Queransicht der Strömungsverteilungseinrichtung aus Fig. 3a;

Fig. 3d

eine untere Ansicht der Strömungsverteilungseinrichtung aus Fig. 3a;

Fig. 3e

einen von unten betrachteten Querschnitt der Strömungsverteilungseinrichtung aus Fig. 3a;

Fig. 4a

eine erste Ansicht eines Ventilkörpers;

Fig. 4b

eine zweite Ansicht des Ventilkörpers;

Fig. 4c

eine Draufsicht auf den Ventilkörper aus Fig. 4a und

Fig. 4d

einen Querschnitt des Ventilkörpers aus Fig. 4a.

Show:

Fig. 1

a view of an open pond pump according to the invention;

Fig. 2a

a plan view of an upper housing half;

Fig. 2b

a side view of the housing half FIG. 2a ;

Fig. 2c

an interior view of a lower housing half;

Fig. 3a

a cross section of the flow distribution device;

Fig. 3b

an upper view of the flow distribution device FIG. 3a ;

Fig. 3c

a partial transverse view of the flow distribution device Fig. 3a ;

Fig. 3d

a bottom view of the flow distribution device Fig. 3a ;

Fig. 3e

a viewed from below cross-section of the flow distribution device Fig. 3a ;

Fig. 4a

a first view of a valve body;

Fig. 4b

a second view of the valve body;

Fig. 4c

a plan view of the valve body Fig. 4a and

Fig. 4d

a cross section of the valve body Fig. 4a ,

FIG. 1 shows a view of an open pond pump according to the invention 1. In this case, reference numeral 2 refers to a housing or more precisely to a lower housing part 21. On this housing 2 can be arranged via hinges 17, a second (not shown) upper housing part. By snap means 19, the two housing parts can be connected together.

The reference numeral 7 refers to a power supply cable which drives a motor 6 of a pump device 5. Furthermore, the pond pump has a control device (not shown) for the pump device. The reference numeral 9 refers to an active part of the pump device 5, that is, the portion in which the flow is generated. The pump has two intake ports 14 and 16, both of which can suck liquid. This liquid passes through a suction port 8 in the active part 9 of the pump and is transported out via a pressure outlet 10 from the pond pump. In this case, the intake port 8 is preferably integrally connected to the intake ports 14 and 16. The levels of these intake ports 14, 16 are at the in FIG. 1 shown embodiment perpendicular to each other.

The intake ports 14, 16 and a connector 31, which opens into the intake port 8, together form the flow distribution device 18. The reference numeral 40 relates to a valve body (explained in detail below) which is rotatable within the flow distribution device 18. This valve body 40 is more precisely rotatable about a rotation axis D and can be rotated with an actuating mechanism 12, which is designed here as a rotary. Preferably, a rotation of the valve body 40 by a rotation angle of substantially 90 ° is possible.

The reference numeral 13 refers to an intake manifold, which is connected to the second intake passage 14 and is screwed for example on this. The reference numeral 11 refers to an outlet nozzle, which can be screwed onto the pressure outlet 10. On the intake manifold 13 and the outlet nozzle 11 each hoses or hose segments can be plugged.

FIG. 2a shows an upper housing part 22 of a housing 2. This upper housing part 22 has a plurality of substantially circular openings 26. In addition, an opening-free region 25 of the housing part is also provided. Below this opening-less region 25 is the second intake channel 14. The reference numeral 29 refers to a holder or a border for the pressure output 10. The reference numeral 27 denotes an engagement device in the hinge joint 17 (see. FIG. 1 ) can intervene.

FIG. 2b shows a side view of the upper housing part FIG. 2a , It can be seen that the openings 26 are each provided only in an upper region of the upper housing part 22. The reference numeral 24 denotes an opening through which the second intake passage 14 protrudes. Individual openings have an elliptical cross section.

Figure 2c shows a lower housing part 21 of the housing 2. This lower housing part has a plurality of elongated openings 15, through which also liquid can be sucked into the interior of the housing. In addition, a mounting device 23 is provided for fastening the pump device 5. The reference numeral 28 designates an opening-less central area of the pond pump 1.

FIG. 3a shows a cross-sectional view of a flow distribution device 18. This has, as stated above, the first intake passage 14 and the second intake passage 16 and is further integrally connected to the connecting piece 31, which in turn opens into the intake port 8. The suction port 8 can by means of a clamping connection 34 and a thread or a corrugated compound 33 on the active part 9 (see. FIG. 1 ) of the pump device and fluid-tightly connected thereto.

FIG. 3b shows a plan view of the flow distribution device 18. The first intake passage 16 has here a substantially circular cross-section or a cylindrical shape. Also on the second intake passage 14, a thread 14a is arranged to accommodate the intake manifold 13 can.

Figure 3c shows a detailed view of the flow distribution device 18 from FIG. 3b , In this case, reference numeral 36 refers to a (also in FIG. 3a shown) opening through which an actuating rod is guided for the valve body.

3d figure shows a bottom view of the flow distribution device 18. The flow distribution device is attached via connecting straps 39 to the housing.

FIG. 3e shows a cross-section from below the flow distribution device 18. Again, the opening 36 is shown for the confirmation rod of the valve body.

The FIGS. 4a to 4d show a valve body according to the invention 40. This valve body has an actuating rod 42, via which the valve body by means of (in FIG. 1 shown) actuating element 12 can be rotated. Furthermore, the valve body 40 has an upper or head region 43 with an at least partially spherical surface 43a. At this upper area is followed by a lower portion 44 with a cylindrical outer periphery. The valve body can be rotated about the axis D. Within the valve body liquid can flow along the arrows S1 and S2. This is selected depending on the rotational position of the valve body within the flow distribution device 18, is sucked through which intake and also how the sucked liquid distributed to the two intake ports 14 and 16.

FIG. 4d shows a cross section of a valve body according to the invention. This valve body has an edge 46, depending on the rotational position of the valve body to achieve a respective partial sealing of the respective intake duct 14, 16. This peripheral edge is also in FIG. 4b shown. The actuating rod 42 has a folded end portion 42 a, so that the actuating element exert a torque on the actuating rod 42 and in this way the valve body can be rotated.

All disclosed in the application documents features are claimed as essential to the invention, provided they are new individually or in combination over the prior art.

LIST OF REFERENCE NUMBERS

1

pond pump

2

casing

5

pump means

6

engine

7

Power supply cable

8th

suction

9

active part

10

pressure outlet

11, 13

intake

12

actuating mechanism

14, 16

intake ports

14a

thread

17

articulation

18

Flow distribution device

19

snap device

21.22

housing part

23

support means

24, 15

opening

25

open area

26

circular openings

27

engaging means

28

open area

29

bracket

31

joint

33

connection

34

clamp connection

36

openings

39

connecting straps

40

valve body

42

actuating rod

42a

end

43

head area

43a

spherical surface

44

lower area

46

edge

D

axis of rotation

S1, S2

arrows

Claims (10)

1. Pond pump (1) comprising a housing (4), a pump device (5) arranged within the housing (4), comprising a suction connection (8) and a pressure outlet (10), wherein the suction connection and the pressure outlet are in fluid connection with one another, and wherein the suction connection opens into at least two suction channels (14, 16) which are essentially separate from one another, wherein the first suction channel (16) is suitable for sucking liquid through the housing wall and the second suction channel (14) is suitable for sucking liquid located outside the housing (4), characterised in that at least the second suction channel (14) is arranged in a fixed position relative to the housing and a flow distribution device (18) is provided which splits a suction volume of the suction connection between the suction channels.
2. Pond pump according to claim 1, characterised in that the second suction channel (14) is a suction pipe which at least in part extends through the housing (4).
3. Pond pump according to at least one of the preceding claims, characterised in that the flow distribution device (18) is provided between the suction connection (8) and the suction channels (14, 16).
4. Pond pump according to at least one of the preceding claims, characterised in that the suction channels (14, 16) are arranged essentially perpendicular to one another.
5. Pond pump according to at least one of the preceding claims, characterised in that the housing has openings (15, 26), through which liquid can enter the housing interior.
6. Pond pump according to at least one of the preceding claims, characterised in that no openings (15, 26) are provided in the region of the housing in which the second suction channel (14) is arranged.
7. Pond pump according to at least one of the preceding claims, characterised in that the flow distribution device (18) comprises an actuating mechanism (21) which is arranged outside the housing and by means of which the splitting of the suction volume between the suction channels (14, 16) can be controlled.
8. Pond pump according to at least one of the preceding claims, characterised in that the flow distribution device (18) comprises a rotatable valve body (40), by means of which the splitting of the suction volume between the suction channels (14, 16) can be controlled.
9. Pond pump according to claim 8, characterised in that the valve body (40) is rotatable about a longitudinal axis (D) of the suction connection (8).
10. Pond pump according to at least one of the preceding claims, characterised in that the flow distribution device (18) is adjustable between two end positions, wherein in one end position the suction volume is sucked completely via the first suction channel (16), and wherein in the other end position the suction volume is sucked completely via the second suction channel (14).

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