DE10361275B4 - Inlet nozzle, in particular for swimming pools - Google Patents

Abstract

Inlet nozzle, in particular for swimming pools and whirlpools, with a hollow spherical body which consists of two parts which can be rotated relative to one another about an axis of rotation (D), each part (2, 3) comprising an outlet opening (6, 7) for the water jet, characterized in that the hollow spherical body consists of two halves which engage in an equatorial plane (E) via tongue and groove arrangements (4, 5) in such a way that they can be pivoted relative to one another about an axis of rotation (D) running perpendicular to the equatorial plane (E) and that each of the halves (2, 3) of the hollow spherical body (1) has a recess (8, 9) which forms an inlet (10) with the recess (8, 9) of the other half (2, 3).

Description

The invention relates to an inlet nozzle, in particular for swimming pools and whirlpool, with a hollow ball body, which consists of two parts which are rotatable relative to each other about a rotation axis, wherein each part comprises an outlet opening for the water jet.

In swimming pools, it is desirable to allow at least two jets of water to enter in different directions. In this way, for example, the lower water layer can be charged within a swimming pool with a jet of water, thereby supplying the ground deposited dirt to a floor drain box. On the other hand, the other water jet can be oriented so that it creates a near-surface water flow, so as to flush floating protective particles in the direction of Skimmer.

State of the art

It is known to use for this task, two separate inlet nozzles, as taken for example from the DE 85 26 472.3 U1 are known.

The disadvantage here is that a separate pool wall bushing must be provided for each inlet nozzle, whereby the necessary material and installation costs is relatively high. Furthermore, it is disadvantageous that a not inconsiderable flow loss is created by the piping to the two pool wall penetrations.

The US 5,462,230 A describes an inlet nozzle having two or more relative to each other about a rotational axis movable in each case closed nozzle body whose outer contour each has a part-spherical body surface, the existing body surfaces of the individual nozzle body together form a spherical shape.

Each nozzle body has a separate inlet and a separate outlet in the otherwise closed body. By rotating the nozzle bodies against each other, it is possible to produce two or more water jets in different directions.

task

The invention has for its object to provide an alternative embodiment of such a Einströmdüse that allows the generation of at least two water jets.

This object is achieved by the reproduced in claim 1 inlet nozzle.

Characterized in that the inlet nozzle according to the invention comprises a hollow ball body, which consists of two parts which are rotatable relative to each other about a rotation axis, and each part comprises at least one outlet opening, water supplied to the hollow ball body can be dispensed by rotating the parts to each other in different directions. The direction of the individual water jet depends on the position of the respective outlet opening.

In the inlet nozzle according to the invention, the hollow ball body is centered, d. H. divided into two halves in the equatorial plane. Since each of the halves has an outlet opening, the inlet nozzle is suitable for generating two water jets whose directions can be adjusted by turning the two halves about the axis of rotation perpendicular to the equatorial plane.

In order to avoid that along the dividing plane of the parts of the hollow ball body supplied water can escape uncontrollably, the parts of the hollow ball body engage via tongue and groove joints. By this measure, at the same time the axis of rotation about which two parts can be rotated relative to each other, set and allows the rotation of adjacent parts to each other, without the need for further action.

Each of the halves of the hollow ball body has a recess which forms an inlet with the corresponding recess of the other half.

The inlet nozzle comprises an insert, on which the hollow ball body is supported.

The recess is provided on the opposite side of the respective outlet opening one half of the hollow ball body, preferably such that the recess extends to over the equatorial plane. This embodiment allows a maximum pivoting range of the two halves of the hollow ball body relative to each other, without this significantly increases the flow resistance generated by the inlet nozzle according to the invention.

In a particularly preferred embodiment of the inlet nozzle according to the invention, the hollow ball body as a whole is pivotally mounted in the insert. By this measure, the axis about which the parts of the hollow ball body are rotatable relative to each other, to be pivoted, whereby an adjustment of the directions of the emerging from the inlet jet water jets are not limited by a fixed axis of rotation.

embodiment

In the drawing, an embodiment of the inlet nozzle according to the invention is shown. Show it:

1 - schematically and in part - the embodiment in cross section (section II in 2 );

2 the section II-II in 1 such as

3a ) to f) a plurality of adjustment possibilities of the embodiment of the inlet nozzle according to the invention in a view from the front (view A in 1 ).

The in the drawing as a whole with 100 designated inlet nozzle comprises a hollow ball body 1 passing through an equatorial plane E in two halves 2 and 3 shared. The two halves 2 . 3 grip via groove / spring arrangements 4 . 5 in such a way that they are pivotable about a perpendicular to the equatorial plane of rotation D relative to each other. The groove / spring arrangements 4 . 5 are in this case designed such that the angle of rotation α, by which each of the halves of the in the 1 such as 3b and 3e shown center position can be pivoted in both directions, 30 ° is (see 3a . 3c . 3d . 3f ).

Every half 2 . 3 of the hollow ball body 1 has an outlet opening 6 . 7 on. Further, in each of the halves 2 . 3 a semicircular recess 8th . 9 on the outlet 6 . 7 Seen in the direction of flow opposite side of the respective half 2 . 3 of the hollow ball body 1 provided, which together with the other recess an inlet 10 formed. The outlet openings are related to the origin 11 of the inlet 10 each inclined at an angle β of 15 ° relative to the equatorial plane E.

Each outlet has a diameter of 8 mm to comply with KOK guidelines. These guidelines state that an outlet to reduce accidents (children could put their fingers in case of larger diameter) should not have a larger diameter. Constructively, however, it is also possible to provide the outlet openings optionally for other purposes with a larger diameter.

The hollow ball body 1 relies so in an only schematically indicated use 12 from being freely rotatable as a whole, as should be symbolized by the arrows P shown in FIG.

LIST OF REFERENCE NUMBERS

100

Inlet

1

Hollow spherical body

e

equatorial plane

2, 3

halves

4, 5

Groove / spring arrangements

D

axis of rotation

6, 7

outlet opening

8, 9

recess

10

Inlet

11

origin

12

commitment

P

arrows

Claims (5)

Inlet nozzle, in particular for swimming pools and whirlpools, with a hollow ball body, which consists of two parts which are rotatable relative to each other about a rotation axis (D), wherein each part ( 2 . 3 ) an outlet opening ( 6 . 7 ) comprises for the water jet, characterized in that the hollow ball body consists of two halves, which via groove / spring arrangements ( 4 . 5 ) in an equatorial plane (E) engage one another in such a way that they are pivotable relative to one another about a rotation axis (D) running perpendicular to the equatorial plane (E), and that each of the halves (E) 2 . 3 ) of the hollow ball body ( 1 ) a recess ( 8th . 9 ), which with the recess ( 8th . 9 ) of the other half ( 2 . 3 ) an inlet ( 10 ). Inlet nozzle according to claim 1, characterized in that the hollow spherical body ( 1 ) in a mission ( 12 ) is supported. Inlet nozzle according to claim 1, characterized in that each of the halves ( 2 . 3 ) of the hollow ball body ( 1 ) a plurality of outlet openings ( 6 . 7 ) having. Inlet nozzle according to claim 1, characterized in that the recess ( 8th . 9 ) on the respective outlet opening ( 6 . 7 ) opposite side of the half ( 2 . 3 ) of the hollow ball body ( 1 ) is provided such that it extends over the equatorial plane (E). Inlet nozzle according to one of claims 2 to 4, characterized in that the hollow ball body ( 1 ) as a whole pivotable in the insert ( 12 ) is stored.

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