DE202018103156U1 - Wasserauslassvorrichtung - Google Patents

Abstract

A water outlet device (5) for placement on a faucet, comprising an inner body (10) surrounding a first inner chamber (31) and having a first side wall (14) having at least one first flow opening (33),
an outer body (40) annularly surrounding the inner body (10) and having a second sidewall pivotable relative to the inner body (10) about the axis from a first end position to a second end position;
at least one first outlet opening (56) and
at least one second outlet opening (58),
wherein in the first end position of the outer body (40) water exits exclusively through the at least one first outlet opening (56) and in the second end position of the outer body (40) water at least partially exits through the at least one second outlet opening (58),
characterized in that
the outer body (40) further comprises an end wall (54) connecting a third side wall (50) and a second side wall (42) and third side wall (50) such that between the second side wall (42), third side wall (50) and end wall (10). 54) an outer chamber (55) is formed,
the at least one second outlet opening (58) is arranged in the end wall (54), and
a first connection between the first inner chamber (31) and the outer chamber (55) containing the first flow opening (33) is present, this connection being closed in the first end position of the outer body (40) and open in the second end position.

Description

The invention relates to a water outlet device according to the preamble of claim 1.

It is a well-known fact that a common faucet with no ancillary equipment for many activities, such as hand washing, emits much more water than is actually needed. This, of course, is a waste of resources, especially in areas where there is a potential for water scarcity. This affects more and more regions of the world.

In order to help solve this problem, it is known to arrange water outlet devices at the outlet of the faucet in order to minimize the water flow.

From the generic WO 2017/136209 For this purpose, a water outlet device is known, which has two end positions. In a first end position exits from this water outlet only very finely atomized water, in a manner fog-like, from the Wasserauslassvorrichtung. In another end position, both this mist and a spray issue from the water outlet device. This means that in the second end position the water outlet is larger. Thus, the water outlet device can be set for various activities. This can make a significant contribution to saving water.

This water outlet device has an inner body surrounding a first inner chamber and extending about an axis, having a first side wall which has at least one first flow opening. Furthermore, an outer body annularly surrounding the inner body is provided with a second side wall which is pivotable relative to the inner body about the axis from a first end position to a second end position. In the end face of the first body, a first outlet opening and a plurality of second outlet opening are provided. In the first end position of the outer body, water emerges in the form of a finely atomised mist exclusively through the first outlet opening and in the second end position of the outer body, water exits both atomized through the first outlet opening and non-atomised and with a larger volume flow through the second Outlet opening.

On this basis, the present invention has the object to improve the generic water outlet to the effect that it is simpler and therefore more efficient to produce, thereby increasing their distribution and thus to make a further contribution to saving water. Preferably, a construction is to be made available, which makes it possible that only one type of water outlet takes place in each end position.

This object is achieved by a water outlet device having the features of claim 1.

According to the invention, the outer body is formed in two shells with a second side wall and a third side wall and a second and third side wall connecting end wall, so that between the second side wall, third side wall and end wall, an outer chamber is formed, wherein the at least one second outlet opening arranged in the end wall is. There is provided a first connection containing the first flow opening between the first inner chamber and the outer chamber, which connection is closed in the first end position of the outer body and open in the second end position. As will be seen in particular with regard to the embodiment described later, this results in a very simple structure.

In a preferred embodiment, located between the first outlet opening and the first inner chamber, a second inner chamber, which is bounded in part by the inner body and partly by the outer body, wherein the first outlet opening is provided in the end wall of the outer body. If finely atomized, mist-like water is to emerge from the first outlet opening, it is further preferred here that the first body has an extension with external thread, so that a spiral-shaped channel is formed, which opens into the second inner chamber.

In order to ensure that no water exits from the first outlet opening in the second end position of the outer body, it is further preferred here to additionally provide at least one second passage opening in the first side wall. This second flow passage is part of a second connection which extends between the first inner chamber and the second inner chamber, said connection being open in the first end position of the outer body and closed in the second end position. The two flow-through openings are preferably offset relative to each other at least in the axial direction.

Further preferred features and further advantages emerge from the further subclaims and from the exemplary embodiment now described in greater detail with reference to the figures.

• 1 einen Wasserhahn mit am Wasserhahn angeordneter Wasserauslassvorrichtung,
• 2 sämtliche Bestandteile der Wasserauslassvorrichtung der 1 in einem nicht montiertem Zustand,
• 3 die Wasserauslassvorrichtung des 2 im vollständigen montiertem Zustand, wobei sich der äußere Körper in seiner ersten Endstellung befindet,
• 3a einen Teil des in 3 Gezeigten, wobei der äußere Körper entlang einer horizontal verlaufenden Schnittebene aufgeschnitten dargestellt ist,
• 4 die Wasserauslassvorrichtung der 3 in einer der 3a ähnlichen Darstellung, wobei sich der äußere Körper in einer Zwischenstellung befindet,
• 4a das in 4 Gezeigte in einer der 3a entsprechenden Darstellung,
• 4b das in den 4 und 4a Gezeigte in einem horizontal verlaufenden Schnitt,
• 5 die Wasserauslassvorrichtung der 3 in einer der 3 entsprechenden Darstellung, wobei sich der äußere Körper in einer zweiten Endstellung befindet,
• 5a das in 5 Gezeigte in einer den 3a und 4a entsprechenden Darstellung und
• 5b das in 5 und 5a Gezeigte in einer der 4 entsprechenden Darstellung.

The invention will now be described with reference to a preferred embodiment with reference to the figures. Hereby show:

• 1 a faucet with a water outlet device arranged on the faucet,
• 2 all components of the water outlet of the 1 in an unmounted state,
• 3 the water outlet device of 2 in the fully assembled state, with the outer body in its first end position,
• 3a a part of in 3 Shown, wherein the outer body is shown cut along a horizontally extending cutting plane,
• 4 the water outlet device of 3 in one of the 3a similar representation, wherein the outer body is in an intermediate position,
• 4a this in 4 Shown in one of the 3a appropriate representation,
• 4b that in the 4 and 4a Shown in a horizontal section,
• 5 the water outlet device of 3 in one of the 3 corresponding representation, wherein the outer body is in a second end position,
• 5a this in 5 Shown in a the 3a and 4a corresponding representation and
• 5b this in 5 and 5a Shown in one of the 4 corresponding representation.

The 1 shows a water outlet device 5 , which are at the outlet of a tap 70 arranged, for example screwed. In 1 Here is only a rotary lever 60 with a connection section 62 and an operation section 66 to see.

The 2 shows all the items of the water outlet device 5 of the 1 , As you can see, these are just four parts, which can be manufactured and assembled according to simple and inexpensive. These items are a sieve 68 , an inner body 10 , an outer body 40 and the already mentioned rotary lever 60 , Before discussing the assembled state and the interaction of the individual parts with reference to the following figures, these will first be described in more detail, although partial anticipation of further figures is already taken. As a rule, the sieve exists 68 , which serves to keep any particles, such as lime, out of the water outlet device, made of metal, all other parts can be inexpensively manufactured as plastic injection molded parts. It becomes the inner body first 10 described:

The inner body 10 has a flange at the top 12 , one from this flange 12 extending side wall, which as the first side wall 14 is referred to a to the first side wall 14 below subsequent extension 18 with external thread on. The flange 12 serves to Anordneung the water outlet device on the faucet and this may for example have an external thread (not shown). The first side wall 14 tapers step by step from top to bottom and has a first section 15 , a second step 16 , a third section 17 and a fourth section 18 on. From the second section 16 ribs extend 16a outward. As follows, in particular with reference to the 3 even better, is the inner body 10 as a two-component injection molded part with a main body 20 and a sealing element 22 educated.

The inner body 10 extends around an axis and encloses an open top first inner chamber 31 (see also here 3 ). In the first sidewall 14 are two flow openings, namely the first flow opening 33 and the second flow opening 34 arranged, from which water from the first inner chamber 31 can escape. This is the first flow opening 33 in the third section 17 the first side wall and the second flow opening 34 is in the fourth section 18 the first side wall. In the circumferential direction, these two flow openings 33 and 34 offset by 180 degrees to each other. Furthermore, one can the 2 clearly deduce that the first flow opening 33 a much larger free cross section than the second flow opening 34 Has.

Except for the flow openings, the outer surface has in the first, third and fourth section 15 . 17 and 18 the first side wall 14 circular cross-sections.

The outer body 40 is double-shelled with two side walls 42 and 50 which over an end wall 54 connected to each other, formed. The inner of the two side walls is called the second side wall 42 and the outer of the two side walls is called the third side wall 50 designated. The third side wall 50 is greater in axial length than the second sidewall 42 educated. As mentioned, the second sidewall are 42 and third sidewall 50 at the bottom by the front wall 54 connected with each other. In this are centric a first outlet opening (nozzle) 56 and annular around the first exit opening 56 around the second outlet opening 58 arranged. The second outlet openings 58 open into an annular outer chamber 55 which is between the second side wall 42 and the third sidewall 50 is formed.

In assembled condition ( 3 ) is the inner body except for the flange 12 received in the outer body so that the outer body is rotatable about the above-mentioned axis with respect to the inner body. This is almost the entire inner surface of the third side wall 50 formed with a circular cross-section. Furthermore, the bottom section 44a , the topmost section 44b and a middle section 44c the inner surface of the second side wall 42 formed with circular cross sections. The cross sections of two further sections 44d . 44e have circular arc segments.

The fourth component is the already mentioned rotary lever 60 , which in the axial direction on the outer body 40 is postponed. This rotary lever has a connecting portion 62 with opening and a lever-like operating section 66 on. For rotationally fixed connection is a tongue and groove connection, which by a first outer longitudinal groove 51 in the outer wall of the outer body and a spring 64 on the inner wall of the opening of the connecting portion 62 is formed. For securing in the axial direction ribs serve in a second longitudinal groove 52 of the outer body 40 and a corresponding counter surface on the inner wall of the opening of the connecting portion 62 (not shown).

With reference to the 3 Now the assembled state, so the finished water outlet device 5 described, but where the rotary lever 60 not shown:

During assembly, the inner body becomes 10 in the axial direction in the outer body 40 inserted until an axial end position is reached. The second side wall 42 takes the extension in its interior 19 with external thread, the fourth section 18 the first side wall and the third section 17 the first side wall up. Due to the above-described geometry of the inner surface of the second side wall 42 this is part of the outer surface 11 of the inner body 10 on the inner surface of the second side wall 42 at. This will be discussed in more detail later. Between the lower end of the inner body 10 ie the lower end of the extension 19 with external thread, and the front wall 54 Spaces a distance, leaving a second inner chamber 32 is formed. Ribs 16a of the second section 16 the first side wall are on an upper end portion of the second side wall 42 on.

As already mentioned, the inner body is 10 formed as a 2K injection molded part, namely with a main body 20 and a sealing element 22 , This sealing element forms an upper seal 23 which the outer chamber 55 seals upwards, and a lower seal 26 which discloses a connection between the first inner chamber, described in detail below 31 and the second inner chamber 32 seals. The upper seal 23 and lower seal 26 are about a connection 25 interconnected, which is present so that the sealing element 22 integral to the main body 20 can be injected. Upper seal 23 and lower seal 26 also serve to clamp holding the outer body 40 on the inner body 10 ,

Between the first inner chamber 31 and the outer chamber 55 There is a connection, which is referred to as the first connection, and between the first inner chamber 31 and the second inner chamber 32 there is a connection, which is called a second connection. Whether these connections are open, closed or throttled (this is especially true for the first connection) depends on the rotational position of the outer body 40 in relation to the inner body 10 from. Here is the first flow opening 33 a portion of the first connection and the second flow opening 34 is part of the second connection.

How to especially good of 2 and as has already been partially described, is the section 44d the inner surface of the second side wall 42 in which the fourth section of the first side wall and a part of the extension 19 However, it has an axially extending first channel (or groove) 46 which extends at least from the height of the second flow opening 34 to the upper end of the extension 19 extends with external thread.

The inner wall of the section 44e the second side wall 42 which the third section 17 the first side wall 14 is only in a relatively small segment of the cross-section circular arc-shaped, the remaining part of the cross section has substantially in the form of an oval whose maximum radius is in the circumferential position, in which also the first channel 46 is trained. This means that the outer surface 11 of the third section 17 of the inner body 10 only on the segment of the section 44e the inner surface of the second side wall 42 is present, which has a circular segment-shaped cross-section. In the remaining area a free space is formed.

This results in two 180 degrees to each other twisted end positions of the outer body 40 in relation to the inner body 10 , namely in the 3 and 3a shown first end position and in the 5 . 5a and 5b shown second end position. An intervening intermediate position is in the 4 . 4a and 4b shown. It should be noted in this connection that within the definitions made in this utility model application the term "end position" is not to be understood as meaning that a rotation stop is formed over which the outer body can not be twisted with respect to the inner body. Rather, the term is understood to mean that a functional end position has been reached. In the states of 4 . 4a . 5 . 5a and 5b is a connection called the first connection between the first inner chamber 31 and outer chamber 55 open and called a second connection connection between the first inner chamber 31 and second inner chamber 32 closed. In the in the 3 and 3a shown state (first end position), it is vice versa, as will now be described:

How to get the 3 can be seen, opens the second flow opening 34 in the first end position of the outer body 40 in the first channel (or groove) 46, so that in this first end position, water from the first inner chamber 31 first through the second flow opening 34 , then through the first channel 46 and then through the through the external thread of the extension 19 and the inner surface of the second side wall 42 formed spiral channel in the second inner chamber 32 from where it flows through the nozzle formed as the first outlet opening 56 exits the water outlet device. The external thread of the extension 19 this puts the water flow in rotation. This results in cooperation with the nozzle-like design of the first outlet opening 56 to the desired nebulization of the exiting water in the first end position of the outer body 40 , In this end position lies the outer surface 11 of the part of the third section 17 the first side wall, in which the first flow opening 33 is located, sealing to the segment of the section 44e the inner surface of the second side wall 42 which has a circular cross-section, so that the flow through this first flow opening 33 is blocked by the inner surface of the second side wall.

Now, if the outer body is rotated by 180 degrees, it lies in the 5 . 5a and 5b shown second end position. In this case, the first flow opening ends 33 in the oval-expanded area of the section 44e the inner surface of the second side wall 42 so that in this case water from the first inner chamber 31 through the first flow opening 33 in the area between the first side wall 14 and second side wall 42 enter and from there into the outer chamber 55 can flow. The water leaves the outer chamber 55 then through the second outlet openings 58 , In this state, the first connection is blocked. In an intermediate position ( 4 and 4b) the first connection is also blocked and the flow cross-section of the second connection is reduced compared to the second end position (see in particular comparison of FIGS 4b and 5b) so that here too water only from the second outlet openings 58 leakage, but in less flow than in the second end position.

LIST OF REFERENCE NUMBERS

5

Wasserauslassvorrichtung

10

inner body

11

outer surface

12

flange

14

first sidewall

15

first section of the first side wall

16

second section of the first side wall

16a

rib

17

third section of the first side wall

18

fourth section of the first sidewall

19

Extension with external thread

20

main body

22

sealing element

23

upper seal

25

connection

26

lower seal

31

first inner chamber

32

second inner chamber

33

first flow opening

34

second flow opening

40

outer body

42

second side wall

44a

bottom portion of the inner surface

44b

top section of the inner surface

44c

middle section of the inner surface

44d

the fourth section of the first side wall associated portion of the inner surface

44e

the portion of the inner surface associated with the third portion of the first side wall

46

first channel (groove)

47

upper section

48

Arc section

49

second channel (oval section)

50

third sidewall

51

first outer longitudinal groove

52

second outer longitudinal groove with ribs

54

bulkhead

55

outer chamber

56

first outlet (nozzle)

58

second exit opening

60

lever

62

Connecting section with opening

64

feather

66

actuating section

68

scree

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• WO 2017/136209 [0004]

Claims (16)

A water outlet device (5) for placement on a faucet, comprising an inner body (10) surrounding a first inner chamber (31) and having a first side wall (14) having at least one first flow opening (33) the inner body (10) annularly surrounding outer body (40) having a second side wall which is pivotable relative to the inner body (10) about the axis from a first end position to a second end position, at least one first exit opening (56) and at least one second outlet opening (58), wherein in the first end position of the outer body (40) water exits exclusively through the at least one first outlet opening (56) and in the second end position of the outer body (40) water at least partially through the at least one second outlet opening ( 58), characterized in that the outer body (40) further comprises a third side wall ( 50) and a second side wall (42) and third side wall (50) connecting end wall (54), so that between the second side wall (42), third side wall (50) and end wall (54) an outer chamber (55) is formed, the at least one second outlet opening (58) is disposed in the end wall (54), and there is a first connection between the first inner chamber (31) and outer chamber (55) containing the first flow opening (33), said connection being in the first End position of the outer body (40) is closed and open in the second end position. Water outlet after Claim 1 characterized in that between the first exit opening (56) and the first inner chamber (31) is provided a second inner chamber (32) which is bounded in part by the inner body (10) and partly by the outer body (40) wherein the first exit opening (56) is provided in the end wall (54) of the outer body (50). Water outlet after Claim 2 , characterized in that the first body has an externally threaded extension (18) delimiting the second inner chamber (32). Water outlet after Claim 2 or Claim 3 , characterized in that in the first side wall (14) additionally at least one second passage opening (34) is provided and that a second flow opening (34) containing second connection between the first inner chamber (31) and second inner chamber (32) is present , wherein this connection is open in the first end position of the outer body (40) and closed in the second end position. Water outlet after Claim 3 and Claim 4 , characterized in that a spiral channel formed between the external thread of the extension (18) and the second side wall (42) is part of the second connection. Water outlet device according to one of Claims 2 to 5 , characterized in that the bottom of the second inner chamber (32) is funnel-shaped. Water outlet after Claim 6 , characterized in that exactly one first outlet opening (56) is arranged in the lowest point of the funnel. Water outlet device according to one of Claims 2 to 7 characterized in that the first flow opening (31) and the second flow opening (32) are offset from one another in the axial direction such that the second flow opening (32) is closer to the first exit opening (56) than the first flow opening (31). Water outlet after Claim 8 , characterized in that first flow opening (31) and second flow opening (32) are offset from each other in the circumferential direction, preferably by 180 °. Water outlet device according to one of the preceding claims, characterized in that exactly a first outlet opening is provided, which preferably has a diameter between 0.4 and 1.5 mm, more preferably between 0.5 and 1.0 mm, in particular of 0.7 mm having. Water outlet device according to one of the preceding claims, characterized in that a plurality of second outlet openings (58) is provided, which are arranged in a circle around the first outlet opening (56) around. Water outlet device according to one of the preceding claims, characterized in that in the second end position of the outer body no water from the first outlet opening (56) emerges. Water outlet after Claim 12 , characterized in that in an intermediate position between the two end positions of the outer body (40) from the first outlet opening (56) no water leaks and from the at least one second outlet opening (58) exits a relation to the second end position reduced volume flow of water. Water outlet device according to one of the preceding claims, characterized in that on the outer body (40) has a rotary lever (60) is attached. Water outlet opening according to one of the preceding claims, characterized in that the inner body (10) has a molded plastic injection molded part main body (20) and at least one molded-on this sealing element (22). Water outlet opening according to one of the preceding claims, characterized in that the outer body and, if present, rotary lever (60) are injection molded plastic parts.

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