Jet shaping attachment for attachment to a faucet

Abstract

A jet-shaping attachment (5) is for attachment to a faucet (1) and comprises a base body (6) with an attachment opening (7) for attachment to the faucet (1) and with a water channel (13) having a water inlet opening (11) with which the water channel (13) can be coupled to a water outlet (4) of the faucet (1), and a water outlet nozzle opening (12) fluidically connected to the water inlet opening (11) and having an outlet cross-sectional area (AD) that is smaller than an inlet cross-sectional area (AE) of the water inlet opening (11).

Description

[0001] The content of the German patent application DE 10 2024 202 364.7 is incorporated herein by reference.

[0002] The invention relates to a jet shaping attachment for attachment to a faucet.

[0003] The available water pressure is often insufficient for cleaning objects under a jet of water from a faucet. Cleaning aids such as brushes are cumbersome and limit access to the area to be cleaned. Cleaning by hand is particularly dangerous when handling sharp objects such as razor blades or knives.

[0004] Attachments for attachment to a water tap are known from CH 263 598 A, DE 1 726 086 U, US 4 838 949 A, CH 362 376 A, DE 10 2017 101 013 A1, DE 1 769 394 U, DE 1 845 797 U, DE 10 2009 060 433 A1, US 5 868 325 A, DE 20 2006 004 971 U1, US 4 941 492 A, US 2009 / 0 114 745 A1 and DE 85 13 518 U1.

[0005] It is the object of the present invention to improve cleaning using water from a tap.

[0006] This object is achieved according to the invention by a beam shaping attachment having the features specified in claim 1.

[0007] The core of the invention is that a jet-shaping attachment can be attached to a faucet, wherein a base body of the jet-shaping attachment has a water outlet nozzle opening with an outlet cross-sectional area that is smaller than an inlet cross-sectional area of ​​a water inlet opening of the base body. The pressure with which the water is released from the jet-shaping attachment is increased. It is possible to remove stubborn dirt from objects using the generated water jet. Due to the reduced outlet cross-sectional area, water consumption is reduced. Due to the reduced outlet cross-sectional area, targeted cleaning of the objects is possible. With the water jet, essentially pinpoint cleaning of the objects is possible.

[0008] Investigations have shown that the jet-shaping attachment according to the invention can be used to advantageously clean razor blades in particular with a thin water jet of increased water pressure and, in particular, fingernails, jewelry, brushes, frames, sieves and shoes.

[0009] The base body can be coupled to the water inlet opening at a faucet outlet. Water discharged from the faucet outlet flows directly into the water inlet opening. The water inlet opening and the water outlet nozzle opening are fluidly connected via a water channel. The water channel is completely integrated within the base body. The jet shaping attachment is designed for direct attachment to the faucet. The jet shaping attachment is easy to use.

[0010] The jet shaping attachment simplifies installation on the faucet. Because the base body is made of an elastic material, it can be easily attached to the faucet. In particular, the base body is securely held to the faucet, particularly due to its elastic restoring forces. The base body is made of rubber.

[0011] The jet-shaping attachment, in which the base body has a through-hole, is flexible in its handling. In particular, the base body can be positioned along the faucet, regardless of the position of the faucet's water outlet. The jet-shaping attachment can be easily pushed onto the faucet. The faucet can completely penetrate the jet-shaping attachment and protrude, particularly at the through-hole on the base body.

[0012] A transverse channel defined by the attachment opening and the passage opening has a transverse axis oriented transversely, in particular perpendicularly, to a longitudinal axis of the water channel. The longitudinal axis of the water channel is in particular parallel to a surface normal of the water inlet opening.

[0013] A jet-shaping attachment according to claim 2 simplifies the sealing of the base body on the faucet. In particular, silicone is arranged on at least one and in particular on all inner surfaces of the base body. In particular, all inner surfaces of the base body have a silicone-containing surface. In particular, all inner surfaces of the base body are provided with a silicone coating. In particular, the water channel, the water inlet opening, the water outlet opening, the attachment opening, and / or the passage opening are provided with a silicone coating on their inner surfaces.

[0014] A beam-shaping attachment according to claim 3 has sufficient stability. The base body is designed with increased rigidity.

[0015] Particularly advantageous is the design of a jet-shaping attachment with a base body according to claims 2 and 3. Such a base body can be designed, in particular, as a two-component injection-molded part. The base body is essentially made of a rubber material with an appropriate hardness value. The base body is stable. To ensure an advantageous seal of the base body on the faucet, the corresponding inner surfaces of the base body are provided with a silicone coating. Such a two-component injection-molding process can be carried out at a pressure of at least 500 bar and a temperature of at least 200°C. Such a jet-shaping attachment is inherently stable. A reinforcing element, which may be present at the water outlet nozzle opening, is dispensable.

[0016] A jet-shaping attachment according to claim 4 enables an advantageous pressure increase. In particular, the outlet cross-sectional area is between 0.5 m 2 and 3.2 mm 2 , in particular between 1.0 mm 2 and 2.5 mm 2 . In particular, the inlet cross-sectional area is 250 mm 2 to 500 mm 2 , in particular between 300 mm 2 and 400 mm 2 . In particular, the outlet cross-sectional area and / or the inlet cross-sectional area are round. A diameter of the outlet cross-sectional area is in particular between 0.8 mm and 2.0 mm. A diameter for the inlet cross-sectional area is in particular between 18 mm and 25 mm. In particular, the inlet cross-sectional area can be coupled to commercially available faucet strainers. In particular, the ratio of the exit cross-sectional area to the inlet cross-sectional area is at most 0.05, in particular 0.01, in particular at most 0.005 and in particular at most 0.001.

[0017] An exit cross-sectional area according to claim 5 enables a load-adapted geometry of the base body. Alternatively, the exit cross-sectional area can also be rectangular and / or slot-shaped. It is possible to shape a cross-sectional area of ​​a water jet to be generated. Depending on the cleaning task, different jet geometries can be advantageous.

[0018] A jet-shaping attachment according to claim 6 is particularly robust. The risk of the base body failing mechanically, particularly tearing, in the area of ​​the water outlet nozzle opening is reduced. A reinforcing element is, in particular, an O-ring, but can also be formed by other geometric elements.

[0019] A beam-shaping attachment according to claim 7 is advantageously designed. In particular, the mechanical connection between the reinforcing element and the base body is improved. In particular, the reinforcing element is embedded in the base body and, in particular, is integrally connected. For example, the reinforcing element can be embedded in the base body using a two-component casting process. The reinforcing element can be made of a plastic material, in particular a rubber material, or of a metallic material.

[0020] Alternatively, it is conceivable for the reinforcing element to be attached separately, in particular to an outer periphery of the base body in the area of ​​the water outlet nozzle opening. For attaching the reinforcing element to the base body, geometric shaped elements such as recesses, in particular a circumferential outer groove, can be present on the base body. The reinforcing element acts in particular as outer peripheral reinforcement.

[0021] The production of the jet-shaping attachment according to claim 8 is straightforward. Handling the one-piece base body is also straightforward. The jet-shaping attachment can be attached directly to the faucet.

[0022] Alternatively, it is conceivable to design the base body in several parts, in particular with an upper part and a lower part, which are each placed on the faucet from opposite sides like half-shells and connected to one another, in particular by clipping and / or locking. In this case, the base body can be made of a comparatively low-elastic, in particular rigid, material, such as a metal or a thermoplastic material. It is advantageous if the base body is made, at least in regions, of an elastic and, in particular, a liquid-tight material. In particular, rubber and / or silicone are used for this purpose. In particular, the base body is made of an elastic and / or liquid-tight material in the region of the water inlet opening. An advantageous, in particular sealing, attachment of the jet-shaping attachment to the water outlet is improved.The elastic material can be surrounded by, and in particular embedded in, a less elastic, particularly rigid material.

[0023] A jet-shaping attachment according to claim 10 enables advantageous water flow within the base body. The pressure increase of the water within the base body occurs, in particular, continuously. The water jet emitted by the jet-shaping attachment is, in particular, uninterrupted.

[0024] A jet-shaping attachment according to claim 11 enables an improved fit on the faucet, particularly at the water outlet. In particular, the base body has a recess that seals against the water outlet. In particular, the inner contour of the recess corresponds to the outer contour of the water outlet. The base body is placed on the water outlet with the elastically expanded recess. Unintentional water leakage, particularly between the water outlet and the base body, is prevented. The jet-shaping attachment is fail-safe in use.

[0025] A jet-shaping attachment according to claim 12 enables a self-clamping, in particular sealing, attachment to the water outlet. The risk of water accidentally escaping from the base body, in particular through the attachment opening, is reduced. It is particularly possible to attach additional sealing elements to the base body, in particular in the form of internal O-rings, which seal the attachment opening, the water inlet opening, and, if applicable, the through-flow opening on the faucet.

[0026] Both the features specified in the patent claims and the features specified in the following exemplary embodiment of a beam-shaping attachment according to the invention are suitable, either individually or in combination with one another, for further developing the subject matter of the invention. The respective combinations of features do not represent any limitations with regard to further developments of the subject matter of the invention, but are essentially merely exemplary in nature.

[0027] Further features, advantages, and details of the invention will become apparent from the following description of an embodiment with reference to the drawing. It shows: Fig. 1 a schematic sectional view of a faucet with a jet shaping attachment attached thereto according to the invention.

[0028] One in Fig. 1A purely schematically illustrated faucet 1 has a cross tube 2, which, in the region of its free end 3, has a water outlet 4 oriented transversely to the cross tube 2. The water outlet 4 is designed, in particular, as a cylindrical attachment and is screwed into an internal thread on the cross tube 2. In particular, the water outlet 4 is designed as a so-called jet regulator. Water exits the faucet 1 at the water outlet 4.

[0029] A jet-shaping attachment 5 is attached to the faucet 1. The jet-shaping attachment 5 has a base body 6, which, according to the illustrated embodiment, is made in one piece from an elastic material, for example, rubber and / or silicone.

[0030] The base body 6 has an attachment opening 7, with which the base body 6 is placed onto the faucet 1, in particular onto the cross pipe 2. A through-opening 8 is arranged on the base body 6, opposite the attachment opening 7 and in particular oriented concentrically thereto. The cross pipe 2 of the faucet 1 can pass through the through-opening 8 with its free end 3 on the base body 6. The faucet 1 protrudes with its cross pipe 2 on the base body 6. The attachment opening 7 and the through-opening 8 define a transverse channel 9 in the base body 6. The transverse channel 9 serves to accommodate the cross pipe 2.

[0031] The base body 6 has a recess 10 which faces the water outlet 4. In particular, the base body 6 is arranged on the faucet 1 such that the outlet 4 is at least partially arranged within the recess 10. At the base of the recess 10, a water inlet opening 11 is formed with an inlet cross-sectional area AE . According to the exemplary embodiment shown, the water inlet opening 11 is circular and has a diameter d E . In particular, the diameter d E is smaller than the outer diameter of the water outlet, which according to the exemplary embodiment shown is 24 mm. The base body 6 is attached to the water outlet 4 in a sealing manner via the recess 10. For this purpose, the elastic material of the base body 6 can be pressed onto the water outlet 4 in sections.

[0032] In the event that the base body 6 is made of a rigid material, a sealing holder is possible in particular by arranging at least one additional sealing element, in particular a sealing ring, in the region of the recess, which is arranged in particular between the base body 6 and the water outlet 4.

[0033] A water outlet nozzle opening 12 is fluidly connected to the water inlet opening 11 via a water channel 13. According to the illustrated embodiment, the water channel 13 is truncated conically shaped. In the direction of the water outlet nozzle opening 12, the water channel 13 tapers, in particular conically. The water outlet nozzle opening 12 is circular in shape with an outlet cross-sectional area AD. The outlet cross-sectional area AD is smaller than the inlet cross-sectional area AE.

[0034] A reinforcing element 14 is arranged at the water outlet nozzle opening 12. In the illustrated embodiment, the reinforcing element 14 is designed as an O-ring that is integrated, in particular embedded, in the base body 6. The O-ring can be made of a metallic material. It is also conceivable for the base body 6 to have an inner groove in the region of the water outlet nozzle opening 12, into which the reinforcing element 14 is inserted. Alternatively, it is also conceivable to arrange the reinforcing element 14 on an outer side of the base body 6, in particular in an outer groove. In this case, the reinforcing element 14 forms a circumferential reinforcement.

[0035] According to the illustrated embodiment, the water outlet nozzle opening 12 has a diameter d A of 8 mm. It is understood that the geometry of the water outlet nozzle opening 12 can also be non-circular and have a different outlet cross-sectional area AD.

Claims

1. A jet-shaping attachment for attachment to a faucet (1) comprising a base body (6) with an attachment opening (7) for attachment to the faucet (1) and with a water channel (13) having a water inlet opening (11) with which the water channel (13) can be coupled to a water outlet (4) of the faucet (1), and a water outlet nozzle opening (12) fluidically connected to the water inlet opening (11) and having an outlet cross-sectional area (A D ) which is smaller than an inlet cross-sectional area (A E ) the water inlet opening (11), characterized in that the base body (6) comprises a rubber material, and in that the base body (6) has a passage opening (8), wherein the attachment opening (7) and the passage opening (8) delimit a transverse channel (9) in the base body (6), wherein the transverse channel (9) serves to receive a transverse pipe (2) of the tap (1).

2. Beam shaping attachment according to claim 1, characterized in that the base body (6) has silicone material, in particular a silicone coating, on at least one inner surface, in particular on the water inlet opening (11).

3. Beam shaping attachment according to one of the preceding claims, characterized in that the elastic material has a hardness of 60 Shore A to 100 Shore A, in particular of 70 Shore A to 95 Shore A and in particular of 80 Shore A to 90 Shore A.

4. Beam shaping attachment according to one of the preceding claims, characterized in that applies A D / A E ≤ 0.2, especially A D / A E ≤ 0.05 and especially A D / A E ≤ 0.

01.

5. Beam shaping attachment according to one of the preceding claims, characterized in that the exit cross-sectional area (A D ) has a circular inner contour.

6. Beam shaping attachment according to one of the preceding claims, characterized bya reinforcing element (14) arranged at the water outlet nozzle opening (12).

7. Beam shaping attachment according to claim 6, characterized in that the reinforcing element (14) is integrated into the base body (6).

8. Beam shaping attachment according to one of the preceding claims, characterized in that the base body (6) is made in one piece.

9. Beam shaping attachment according to one of the preceding claims, characterized in that the passage opening (8) is arranged concentrically to the attachment opening (7) on the base body (6).

10. Beam shaping attachment according to one of the preceding claims, characterized in that the water channel (13) is tapered in the direction of the water outlet nozzle opening (12), in particular conical.

11. Beam shaping attachment according to one of the preceding claims, characterized in thatthe water inlet opening (11) is formed at the bottom of a recess (10) with which the base body (6) can be attached to the water outlet (4), in particular in a sealing manner.

12. Beam shaping attachment according to claim 11, characterized in that the recess (10) has an inner diameter (d E ) that is less than 24 mm.

Images