Aeration device

Abstract

The present invention relates to an aeration device that can be connected to a water flow distribution port to generate a atomized water flow. The aeration device comprises, inside the connecting body, an inflow water guide plate adapted to divide the water flow into a plurality of accelerated micro-water flows, and a monoblock spray body provided with a plurality of spray holes into which the micro-water flows are mixed with air. A jet shredder peg adapted to shatter the micro-water flows mixed with air is associated with each spray hole.

Claims

1. An aeration device that can be connected to a water flow distribution port to generate a sprayed water flow, An outer body having connecting means for sealing connection with the distribution port, Inside the outer body, An inflow water guide plate, wherein the guide plate is provided with a plurality of water inlet holes adapted to divide the water flow from the distribution port into a plurality of accelerated minute water flows, A monoblock spray body is provided, positioned downstream of the guide plate and spaced apart from the guide plate, so that the opposing surfaces of the guide plate and the spray body together with the outer body define a boundary of an air suction chamber that is in fluid communication with the external environment, and a plurality of spray holes are provided in the spray body, and each spray hole is provided with a jet shatterer peg, which is provided coaxially with the water inlet hole and adapted to shatter the air-mixed minute water flow, so that each spray hole receives a minute water flow mixed with air drawn into the suction chamber due to the Venturi effect from the water inlet hole, An aeration device equipped with the following features.

2. The aeration apparatus according to claim 1, wherein the jet shredder peg extends coaxially with the hole axis to form a substantially annular peripheral passage through which the minute water flow mixed with air is transported.

3. The aeration device according to claim 1 or 2, wherein each water inlet hole is defined at the end facing the spray body by a guide neck extending from the guide plate, and each spray hole has an inlet configured to receive the distal end of the guide neck.

4. The aeration apparatus according to any one of claims 1 to 3, wherein each jet breaker peg is formed by an axial section having a diameter that increases in the direction of the outlet of each of the minute water streams mixed with air from the aeration apparatus, so as to form a series of jet breaker planes.

5. The aeration device according to any one of claims 1 to 4, further comprising a atomized water outlet plate positioned downstream of the spray body in contact with the spray body, wherein the atomized water outlet plate is provided with a plurality of outlet openings, and each outlet opening is provided coaxially with each spray hole in each spray hole.

6. The aeration device according to claim 5, wherein a plurality of radial ribs for guiding the atomized water flow are provided at each outlet opening.

7. The aeration device according to any one of claims 1 to 6, wherein the air suction chamber is in communication with the external environment through a plurality of suction channels provided inside the spray body and / or between the spray body and the outer body, parallel to the side wall of the outer body.

8. The aeration device according to any one of claims 1 to 6, wherein the atomized water outlet plate is cup-shaped, comprising a base portion provided with the outlet opening and a substantially cylindrical side wall extending from the base portion, and the spray body is housed inside the atomized water outlet plate.

9. The aeration device according to claim 8, wherein the air suction chamber communicates with the external environment through a plurality of suction channels provided in the side wall of the atomized water outlet plate.

10. The aeration device according to any one of claims 1 to 9, wherein the guide plate and the spray body are inserted into the outer body by forward fitting and / or force fitting.

11. The aeration device according to any one of claims 1 to 7, wherein the guide plate is placed on an annular stepped portion provided inside the outer body.

12. The aeration device according to claim 8 or 9, wherein the atomizing water outlet plate is placed on an inner annular step portion provided on the inner side surface of the outer body near its distal end.

13. The aeration device according to any one of claims 1 to 7, wherein the outer body and the guide plate are integrally provided in a single body made of, for example, a plastic material.

14. The aeration device according to any one of claims 1 to 13, wherein the connecting means comprises a threaded neck adapted to be screwed into the threaded end of the distribution port.

15. The aeration apparatus according to any one of claims 1 to 14, wherein the side of the guide plate fitted to face the distribution port functions as a support seat for an annular sealing element fitted to make the connection with the distribution port airtight.

16. The aeration apparatus according to any one of claims 1 to 15, wherein the guide holes and each of the spray holes are uniformly distributed in the cross-section of the aeration apparatus.

17. The aeration device according to claim 16, wherein seven guide holes and spray holes are provided on the guide plate and the spray body, respectively, positioned at the vertices and center of a hexagon.

18. A faucet comprising a water distribution pipe and an aeration device according to any one of claims 1 to 17 connected to the distribution pipe.

19. A hand shower or kitchen faucet sprayer having a distribution head, the seat portion being provided with a water jet supply duct and fluid communication therewith, wherein the aeration device according to any one of claims 1 to 17 is housed in the seat portion.

20. A shower head comprising one or more aeration devices as described in any one of claims 1 to 17.

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