CN215429659U

CN215429659U - Water outlet device

Info

Publication number: CN215429659U
Application number: CN201990000762.8U
Authority: CN
Inventors: 卡伊·韦尔纳·米科斯; 龙尼·布拉克赫亚; 克里斯托弗·阿佩尔斯泰特; 罗伯特·阿克塞尔松
Original assignee: Ikea Supply AG
Current assignee: Ikea Supply AG
Priority date: 2018-06-06
Filing date: 2019-06-05
Publication date: 2022-01-07
Anticipated expiration: 2029-06-05
Also published as: DE202018103156U1; WO2019235997A1

Abstract

A water outlet device arranged at a water tap. The water outlet device is provided with an inner body, an outer body, a filter screen and a rotating rod. The inner body surrounds the first interior chamber with a first side wall, and the first side wall has at least one first through-flow opening. The outer body surrounds the inner body and is rotatable relative to the inner body from a first end position to a second end position. The outer body has a second sidewall, a third sidewall, and an end wall connecting the second sidewall and the third sidewall such that an outer chamber is formed between the second sidewall, the third sidewall, and the end wall. The water flows out through the at least one first outlet opening in the first end position of the outer body and at least partly through the at least one second outlet opening in the second end position of the outer body.

Description

Water outlet device

Technical Field

The utility model relates to a water outlet device.

Background

It is a known fact that much more water flows from a common tap without additional means than is actually needed for many activities such as hand washing. This of course would create a waste of resources, especially in areas of potential water shortage. This applies to an increasing number of regions of the world.

To help solve this problem, it is known to arrange a water outlet device on the outlet opening of the faucet to minimize the through-flow of water.

From WO 2017/136209 a water outlet device of the generic type is known, which has two end positions. In the first end position, only very finely atomized water flows out of the water outlet device, to some extent in the form of a mist. In the other end position, both such mist and spray flow exit the water outlet means. This means that the outlet opening is larger in the second end position. Thus, the water outlet device may be adapted to (adjust) different activities. A significant contribution to water conservation can thereby be achieved.

The water outlet device has an inner body enclosing a first inner chamber by a first side wall and extending around an axis, and the first side wall has at least one through-flow opening. Further, an outer body having a second sidewall is disposed about the inner body, the outer body being rotatable about an axis relative to the inner body from a first end position to a second end position. A first outlet opening and a plurality of second outlet openings are provided in an end side portion of the first body. In the first end position for the outer body, water in the form of a fine atomized mist passes only through the first outlet opening, and in the second end position of the outer body, water is both atomized through the first outlet opening and not atomized but passes through the second outlet opening in a larger volume flow.

SUMMERY OF THE UTILITY MODEL

From this point of view, it is an object of the utility model to improve a water outlet device of the generic type such that it can be manufactured more easily and therefore more rationally, thereby increasing the distribution and thus making a further contribution to saving water. Preferably, a configuration should be provided: this configuration makes it possible to have only one type of outlet at each end position.

This object is achieved by the water outlet device according to the utility model.

The present invention provides a water outlet device to be arranged at a tap, the water outlet device having: an inner body extending about an axis and surrounding a first interior chamber through a first sidewall, and the first sidewall having at least one first through-flow opening; an outer body surrounding the inner body in the form of a ring and having a second sidewall, the outer body being rotatable relative to the inner body about the axis from a first end position to a second end position; at least one first outlet opening; and at least one second outlet opening, wherein water only flows out through the at least one first outlet opening in the first end position of the outer body, and water flows out at least partially through the at least one second outlet opening in the second end position of the outer body, characterized in that the outer body further has a third side wall and an end wall connecting the second side wall and the third side wall, such that an outer chamber is formed between the second side wall, the third side wall and the end wall, in the outer chamber, at least one second outlet opening is arranged in the end wall, and, a first connection with the first through-flow opening is arranged between the first inner chamber and the outer chamber, wherein the first connection is closed in the first end position and open in the second end position of the outer body.

According to the utility model, the outer body has two shells with a second side wall and a third side wall, and an end wall connecting the second side wall and the third side wall, such that an outer chamber is formed between the second side wall, the third side wall and the end wall, wherein the at least one second outlet opening is provided in the end wall. A first connection with a first through-flow opening is provided between the first inner chamber and the outer chamber, wherein the connection closes the outer body in the first end position and opens in the second end position. As can be seen in particular in view of the examples of embodiments described later, a very simple configuration is achieved.

In a preferred embodiment, there is a second inner chamber between the first outlet opening and the first inner chamber, the second inner chamber being partly surrounded by the inner body and partly surrounded by the outer body, wherein the first outlet opening is provided in an end wall of the outer body. If fine atomized water mist is to be discharged from the first outlet opening, it is further preferred here that the first body has an extension with an external thread, so that a passage in the form of a spiral is formed which opens into the second inner chamber.

In order to establish that no water flows out of the first outlet opening in the second end position of the outer body, it is further preferred here that: at least one second through-flow opening is also provided in the first side wall. The second through-flow opening is part of a second connection extending between the first and second inner chambers, wherein the connection is open in the first end position and closed in the second end position of the outer body. The two through-flow openings are preferably offset from one another at least in the axial direction.

Further preferred features and further advantages are given in the examples of embodiments described in more detail with reference to the accompanying drawings.

Drawings

The utility model will be further described on the basis of preferred examples of embodiments and with reference to the accompanying drawings. Here:

FIG. 1 shows a faucet having a spout disposed thereon;

FIG. 2 shows all parts of the water outlet device of FIG. 1 in an uninstalled state;

FIG. 3 shows the outlet of FIG. 2 in a fully installed condition with the outer body in a first end position;

FIG. 3a shows a portion of FIG. 3, wherein the outer body is shown cut along a horizontal cutting plane;

fig. 4 shows the tap of fig. 3 in a view corresponding to fig. 3a, with the outer body in an intermediate position;

FIG. 4a shows a part of FIG. 4 in a diagram corresponding to FIG. 3 a;

FIG. 4b shows a portion of FIGS. 4 and 4a in a horizontal cross-sectional view;

FIG. 5 shows the outlet of FIG. 3 in a view corresponding to FIG. 3, with the outer body in a second end position;

fig. 5a shows a part of fig. 5 in a diagram corresponding to fig. 3a and 4 a; and

fig. 5b shows a part of fig. 5 and 5a in a diagram corresponding to fig. 4.

Detailed Description

Fig. 1 shows a water outlet device 5, wherein a tap 70 is arranged at the outlet, e.g. screwed on the outlet. In fig. 1, only the rotary lever 60 with the connecting section 62 and the actuating section 66 is shown.

Fig. 2 shows all the separate parts of the outlet device 5 of fig. 1. As shown, there are only four separate parts, which can be produced and installed relatively simply and cost effectively. The separate parts are the screen 68, the inner body 10, the outer body 40 and the already mentioned rotary rod 60. These separate parts will first be described in more detail before turning to the mounted state and cooperation between the separate parts with reference to the subsequent figures, but will be partly referred to herein with reference to the other figures. The screen 68 is usually made of metal and serves to keep possible particles, such as lime, away from the water outlet device, all other parts being made cost-effectively from injection-moulded parts. The inner body 10 will be described first.

The inner body 10 has a flange 12 at an upper end, a side wall, designated as a first side wall 12, extending from the flange 12, the extension 18 being connected to a lower side of the first side wall 14, and an external thread 18. The flange 12 serves for the arrangement of the outlet at the faucet and may have an external thread (not shown) for this purpose. The first side wall 14 tapers stepwise downwards and has a first section 15, a second section 16, a third section 17 and a fourth section 18. The rib 16a extends outwardly from the second section 16. As better shown below with specific reference to fig. 3, the inner body 10 is formed as a two-part injection molding having a main body 20 and a sealing element 22.

The inner body 10 extends around an axis and encloses an upper first inner chamber 31 (see also fig. 3). In the first side wall 14, two through-flow openings are arranged, namely a first through-flow opening 33 and a second through-flow opening 34, from which first through-flow opening 33 and second through-flow opening 34 water from the first interior chamber 31 can escape. The first through-flow opening 33 is arranged here in the third section 17 of the first side wall, and the second through-flow opening 34 is arranged in the fourth section 18 of the first side wall. The two through-

flow openings

33 and 34 are displaced from each other by 180 degrees in the circumferential direction. Furthermore, it is evident from fig. 2 that the first through-flow opening 33 has a substantially larger free cross-section than the second through-flow opening 34.

The outer surface has a cross section in the form of an annular line in the first section 15, the third section 17 and the fourth section 18 of the first side wall 14 up to the through-flow opening.

The outer body 40 has two shells with two

side walls

42 and 50, the two

side walls

42 and 50 being connected to each other by an end wall 54. The inner sidewall of the two sidewalls is designated as the second sidewall 42 and the outer sidewall of the two sidewalls is designated as the third sidewall 50. The third sidewall 50 has a longer axial length than the second sidewall 42. As mentioned, the second side wall 42 and the third side wall 50 are connected to each other by an end wall 54. A first outlet opening (nozzle) 56 is centrally arranged in the end wall, and a second outlet opening is arranged around the first outlet 56. The second outlet opening 58 opens into an annular outer chamber 55, which annular outer chamber 55 is formed between the second side wall 42 and the third side wall 50.

In the mounted state (fig. 3), the inner body is received in the outer body up to the flange in the following manner: the outer body is rotatable relative to the inner body about the aforementioned axis. For this reason, almost all of the inner surface of the third sidewall 50 has a circular cross section. Further, the lowermost section 44a, the uppermost section 44b, and the intermediate section 44c of the inner surface of the second side wall 42 have a circular cross section. The other two sections 44d, 44e have arcuate sections in cross-section.

The fourth component is the already mentioned rotary rod 60, which rotary rod 60 is pushed in the axial direction onto the outer body 40. The rotary lever has a connecting section 62 with an opening and a rod-shaped actuating section 66. A tongue-and-groove connection with a first outer longitudinal groove 51 on the outer wall of the outer body and a tongue 64 on the inner wall of the opening of the connecting section 62 serves as a connection for fixing rotation. Ribs in the second longitudinal groove 52 of the outer body 40 and corresponding counter surfaces (not shown) on the inner wall of the opening of the connecting section 62 are used for fastening in the axial direction.

The mounted state, i.e. the finished outlet 5, will now be described with reference to fig. 3, however the rotary lever 60 is not shown here.

Upon installation the inner body 10 will be inserted in the axial direction into the outer body 40 until the axial end position is reached. The second side wall 42 receives the externally threaded extension 19 in the interior of the second side wall 42, the fourth section 18 receives the first side wall, and the third section 17 receives the first side wall. Due to the above-mentioned geometry, the inner surface of the second sidewall 42 thereby abuts a portion of the outer surface 11 of the inner body 10 against the inner surface of the second sidewall 42. This will be described in more detail below. There will be a distance between the lower end of the inner body 10, i.e. the lower end of the externally threaded extension 19, and the end wall 54, thereby forming the second chamber 32. The ribs 16a of the second section 16 of the first side wall are arranged on the upper end region of the second side wall 42.

As already described, the inner body 10 is formed as a two-part injection moulding, i.e. with a main body 20 and a sealing element 22. The sealing element forms: an upper seal 23 that seals the outer chamber 55 above, and a lower seal 26 that seals the connection between the first and second

inner chambers

31, 32, as will be described in detail below. The upper seal 23 and the lower seal 26 are connected to each other by a connection 25, which connection 25 is provided such that the sealing element 22 can be injection moulded in one piece with the body 20. The upper and

lower seals

23, 26 also serve to retain the outer body 40 in a clamping manner on the inner body 10.

A connection designated as a first connection is provided between the inner chamber 31 and the outer chamber 55, and a connection designated as a second connection is present between the first inner chamber 31 and the second inner chamber 32. The opening, closing or throttle adjustment of the connection, in particular in connection with the first connection, depends on the rotational position of the outer body 40 on the inner body 10. The first through-flow opening 33 is here part of the first connection and the second through-flow opening 34 is part of the second connection.

As is particularly evident from fig. 2 and as already partially described, the section 44d of the inner surface of the second side wall 42 notably has a hollow cylindrical inner surface, but has a first passage (or groove) 46 extending in the axial direction, in which section 44d the fourth section of the first side wall, and part of the extension 19, is received, the first passage (or groove) 46 extending at least from the highest point (height) of the second through-flow opening 34 to the upper end of the extension 19 having an external thread.

The inner wall of the section 44e of the second side wall 42, which section 44e receives the third section 17 of the first side wall, is arcuate only in a relatively small section of the cross section, and the rest of the cross section has substantially the form of an ellipse, the largest radius of which is in the circumferential position in which the first channel 46 is also formed. This means that the outer surface 11 of the third section 17 of the inner body 10 abuts only the following sections of the section 44e of the inner surface of the second side wall 42: the section has a cross-section in the form of an annular segment. Free space is formed in the rest of the region.

Thus, two end positions of the outer body 40 and the inner body 10 rotated 180 degrees relative to each other are given, namely a first end position shown in fig. 3 and 3a and a second end position shown in fig. 5, 5a and 5 b. Intermediate positions between the first end position and the second end position are shown in fig. 4, 4a and 4 b. In this connection, it should be noted that, with regard to the definition of the term "end position" in the present application, it should not be understood that: a rotation stop is formed on which the outer body cannot rotate relative to the inner body. Rather, the term should be understood as: a functional end position is reached. In the state of fig. 4, 4a, 5a and 5b, the connection between the first inner chamber 31 and the outer chamber 55, designated as the first connection, is opened, and the connection between the first inner chamber 31 and the second inner chamber 32, designated as the second connection, is closed. In the state shown in fig. 3 and 3a (first end position), this is reversed, as will now be described.

As shown in fig. 3, the second through-flow opening 34 opens into a first channel (or groove) 46 in a first end position of the outer body 40, whereby in this end position water can flow first from the first inner chamber 31 through the second through-flow opening 34, then through the first channel 46, and then through a channel in the form of a spiral, which channel is formed by the external thread of the extension 19 and the inner surface of the second side wall 42, into the second inner chamber 32, whereby the water flows out of the water outlet device through a first outlet opening 56 formed as a nozzle. The external thread of the extension 19 causes the water flow to rotate here. This will result in a desired atomization of the outflowing water in the first end position of the outer body 40 in a nozzle-like manner in cooperation with the first outlet opening 56. In the end position, the outer surface 11 of the portion of the third section 17 of the first side wall in which the first through-flow opening 33 is located sealingly abuts a section of the section 44e of the inner surface of the second side wall 42 having an arcuate cross-section, so that the through-flow through the first through-flow opening 33 is blocked by the inner wall of the second side wall.

If the outer body is now turned 180 degrees, the second end position is reached, as shown in fig. 5, 5a and 5 b. In this case, the first through-flow opening 33 ends in an oval enlarged region of the section 44e of the inner surface of the second side wall 42, so that in this case water from the first inner chamber 31 enters through the first through-flow opening 33 into the region between the first side wall 14 and the second side wall 42 and can flow from this region into the outer chamber 55. The water then leaves the outer chamber 55 through a second outlet opening 58. The first connection is blocked in this case. In the intermediate position (fig. 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 (for this purpose, in particular, compare fig. 4b with fig. 5 b), so that water also flows out only from the second outlet opening 58, but at a smaller flow rate than in the second end position.

Claims

1. A water outlet device (5), the water outlet device (5) to be arranged at a water tap, the water outlet device (5) having: an inner body (10), the inner body (10) extending around an axis and surrounding a first inner chamber (31) by a first side wall (14), and the first side wall (14) having at least one first through-flow opening (33);

an outer body (40), said outer body (40) surrounding said inner body (10) in the form of a ring and having a second side wall, said outer body (40) being rotatable relative to said inner body (10) about said 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 water only flows out through the at least one first outlet opening (56) in the first end position of the outer body (40) and water at least partially flows out through the at least one second outlet opening (58) in the second end position of the outer body (40),

it is characterized in that the preparation method is characterized in that,

the outer body (40) further having a third side wall (50) and an end wall (54) connecting the second side wall (42) and the third side wall (50) such that an outer chamber (55) is formed between the second side wall (42), the third side wall (50) and the end wall (54), in which outer chamber (55) at least one second outlet opening (58) is arranged in the end wall (54), and,

a first connection with the first through-flow opening (33) is arranged between the first inner chamber (31) and the outer chamber (55), wherein the first connection is closed in the first end position and open in the second end position of the outer body (40).

2. A water outlet device according to claim 1, wherein a second inner chamber (32) is arranged between the first outlet opening (56) and the first inner chamber, the second inner chamber (32) being partly enclosed by the inner body (10) and partly enclosed by the outer body (40), wherein the first outlet opening (56) is arranged in the end wall (54) of the outer body.

3. A water outlet device according to claim 2, wherein the inner body has an externally threaded extension (18), the extension (18) enclosing the second inner chamber (32).

4. A water outlet device according to claim 3, wherein also at least one second through-flow opening (34) is arranged in the first side wall (14), and a second connection with the second through-flow opening (34) is arranged between the first inner chamber (31) and the second inner chamber (32), wherein the second connection is open in the first end position and closed in the second end position of the outer body (40).

5. A water outlet device according to claim 4, characterized in that the channel in the form of a spiral formed between the external thread of the extension (18) and the second side wall (42) is part of the second connection.

6. A water outlet device according to any one of claims 2-5, wherein the bottom of the second inner chamber (32) is funnel-shaped.

7. A water outlet device according to claim 6, characterized in that exactly one first outlet opening (56) is arranged in the deepest point of the funnel.

8. A water outlet device according to any one of claims 4-5, characterized in that the first through-flow opening and the second through-flow opening are displaced from each other in the axial direction such that the second through-flow opening is closer to the first outlet opening (56) than the first through-flow opening.

9. A water outlet device according to claim 8, wherein the first and second through-flow openings are displaced in relation to each other in a circumferential direction.

10. A water outlet device according to claim 8, wherein the first and second through-flow openings are displaced 180 ° in relation to each other in the circumferential direction.

11. A water outlet device according to any one of claims 1-5, characterized in that exactly one first outlet opening is provided, having a diameter between 0.4mm and 1.5 mm.

12. A water outlet device according to any one of claims 1-5, characterized in that exactly one first outlet opening is provided, having a diameter between 0.5mm and 1.0 mm.

13. A water outlet device according to any one of claims 1 to 5, wherein exactly one first outlet opening is provided, having a diameter of 0.7 mm.

14. A water outlet device according to any one of claims 1-5, characterised in that a plurality of second outlet openings (58) is provided, which plurality of second outlet openings (58) are arranged in a ring-like manner around the first outlet opening (56).

15. A water outlet device according to any one of claims 1-5, wherein in the second end position of the outer body no water flows out through the first outlet opening (56).

16. A water outlet device according to claim 15, wherein in an intermediate position between the two end positions of the outer body (40) no water flows out through the first outlet opening (56), and water with a reduced volume flow rate flows out from the at least one second outlet opening (58) compared to the second end position.

17. A water outlet device according to any one of claims 1-5, characterized in that a rotary rod (60) is pushed onto the outer body (40).

18. The water outlet device according to any one of claims 1 to 5, characterized in that the inner body (10) has a main body (20) formed as an injection-molded piece and at least one sealing element (22) injection-molded onto the main body (20).

19. A water outlet device according to claim 17, wherein the outer body and the rotary lever (60), if present, are injection moulded pieces.