DE8504739U1 - Spray device for the mist-free application of liquids on surfaces of any size - Google Patents

Description

Spray device for smooth application of Liquids on surfaces of any size

Spray device, consisting of a pressure vessel (I) with an upper part which is designed to accommodate the standpipe (3).

The standpipe (3) has a guide in the lower area, at the end of which there is a seal (4) located », with the plunger with dichroic ball and Float (2) is introduced here.

The container (1) has two connections in the upper area to accommodate a safety valve (17) and a control manometer (18).

On the side of the container (1) there are connections for the working suction hose (12, 11) and one Level indicator (6).

^{A suction device β} injector (7) is attached to the upper end of the standpipe (3).

A pressure reducer with a drainage tank (9) is installed in the entrance area of the injector (7). A hose (10) is connected to this pressure reducer, which has the task of supplying the compressed air to bring about v_.

A hand-operated shut-off valve (8) is located at the exit area of the suction device (7).

The connection piece (20) in the lower area of the container is connected to the suction hose (12), at the end of which there is a suction strainer with a non-return valve (13). The suction hose (12) contains a T-piece (21), to whose free outlet a working hose (11) is connected, is. This work hose is connected to a handle and a built-in quick release fastener (14), which in turn is connected to the spray lance (IS) and nozzle.

As soon as the suction basket (13) is in a commercially available container (19) - canister, tank, FaCs, etc. - which is filled with a liquid and the shut-off valve (8) is opened at the same time (provided that the hose (10) supplies compressed air), this creates suction in the container (1).

This suction is propagated through the hose (12) and up to the suction basket (13). At this moment, liquid is transferred from the container (19) into the container (1) transported.

This transport takes place until the float (2) with the plunger and ball has reached the sealing ring (4). There is an automatic shut-off of the Liquid transport into the container (1). Since at this moment there is no longer any suction in the container (1).

An outflow or overflow is excluded.

The level indicator (6) shows the operating personnel what amount of liquid is in the container (1).

As soon as the valve (8) is closed when the liquid level is at the top, an overpressure immediately arises in the container (1), which is shifted to the working hose (11) and the handle (14).

As soon as you operate the handle with the built-in quick valve (14), the liquid flows through the Spray tube (15) and emerges from the nozzle without the admixture of compressed air and without the formation of a mist.

This has the advantage that no harmful vapors or mist formation have to be inhaled.

A backflow of the sucked liquid into the reservoir (19) is through the check valve in the Prevents the suction strainer (13).

ADVANTAGES OF THE INVENTION

The above-described spray device is designed so that expensive and sometimes harmful chemicals can be applied to large areas.

The further advantage of this invention is that it does not have to be infested by hand and thus no loss of liquid when pumping over or the like Has.

Thanks to the fine metering on the compressed air regulator, an extremely fine spray of the product can be achieved without Fog formation can be achieved. This advantage of the prescribed spray device is one in the Able to achieve great savings as well as environmentally friendly wetting of large areas.

Claims (1)

1. Spray device characterized in that in a container (1) a Standpipe (3) is installed. 2. According to claim 1, characterized in that there is a guide bore in the lower region of the standpipe (3). 3. According to claim 2, characterized in that there is a sealing ring (4) at the end of the guide bore. 4. According to claim 3, characterized in that the guide bore a Receives float (2) with tappet and ball. 5. According to claim 4, characterized in that the standpipe (3) under hat the sealing ring (4) ventilation bores (16) are located. 6. According to claim 5, characterized in that the upper part of the Standpipe (3) a suction device (7) (injector) is located. 7. According to claim 6, characterized in that the entrance area A pressure reducer (9) is installed on the suction device. 8. According to claim 7, characterized in that a hand-operated control valve (8) is present at the output of the suction device (7). 9. According to Claim 8, characterized in that the container (1) has connections on the side. 10. According to * Claims * 9r "dVd u r cn '-ge * k e η η draws, that the lower connection (20) for receiving the suction and return hoses as well as the level indicator is determined. 11. According to claim 10, characterized records that the connection (22) to on the upper level indicator is used. 2. According to claim 9, characterized - - shows that at the end (20) a T-piece (21) is installed. 13. According to claim 9, characterized in that that the free ends of the T-Stückcs (21) with the suction hose (12) and the working hose (11) are connected. 14. According to claim 9, characterized in that that the hose (12) is provided with a suction strainer and a check valve is. 5S. According to claim 9, characterized in that at the end of the hose (11) one handle with built-in quick valve (14) ι and spray lance (15) is available. 16. Spray device 1. - 9. marked with a mark, that on the upper cover there is a standpipe (23) for alternative liquid extraction and filling is located. 17. According to claim 1 - 16, characterized in that that the level indicator (6) in the lower area of the container (1) has its own connection owns.