INSULATED ELECTROSTATICALLY ASSISTED SPRAYING EXTENDER

Abstract

An insulated electrostatically-assisted insulated spraying extender (10) is described, which is installed on the spraying bar (100) of a spraying device and positioned adjacent to a hydraulic nozzle (20) that atomizes the spray solution, said extender (10) being equipped with an insulated internal shaft (12) for the passage of the power supply cable (30) and the placement of an encapsulated electric device (13) that feeds the induction electrode (151) surrounding the opening (21) of the hydraulic nozzle (20), causing the dielectric rupture of atomized drops, eliminating or decreasing the wetting of the induction electrode (151) and of the power supply cable (30), as well as of other electric parts that affect the efficiency and the full operation of the spraying nozzle, while hindering leakage of the electric current through cable (30) by contacting any section of the machine structure.

Claims

1. Insulated electrostatically-assisted spraying extender (10) installed on the spraying bar (100) of a grounded sprayer for use in agriculture, positioned adjacent to a hydraulic nozzle (20) that atomizes drops from the spraying liquid that are released through the nozzle (21) to be electrically charged when passing through the induction electrode (151) that promotes an electrostatic field that charges drops electrically to be directed to surfaces to which the product must be applied, said extender being characterized by comprising a hydrophobic material casing (11) equipped with an insulated internal shaft (12) with an upper extreme portion provided with an opening (121) to introduce a power supply cable (30) that is connected on one end to a high-voltage electronic module powered by the tractor's battery and on the opposite end to an encapsulated electrical device (13) positioned on said insulated internal shaft (12), said electrical device (13) feeding the induction electrode (151), on the lower end of the insulated shaft (12) being disposed a spring (14) whose free ends fasten the support (15) of the ring induction electrode (151).

2. Insulated electrostatically-assisted spraying extender (10) according to claim 1, characterized by the casing (11) surface being provided with fins.

3. Insulated electrostatically-assisted spraying extender (10) according to claim 1, characterized by the finned outer cover (111) on the casing (11) being made of hydrophobic material.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0020] FIG. 1 shows a perspective view of the insulator and the spray nozzle attached to the spray bar of a spraying equipment.

[0021] FIG. 2 shows a cross-section view of the insulator evidencing the internal insulated rod for passage of the power supply cable of the electrical device that contacts the induction electrode.

[0022] FIG. 3 shows a perspective view of the insulator with the external covering.

DETAILED DESCRIPTION OF THE INVENTION

[0023] The electrostatically-assisted spraying extender (10), object of the present invention, is installed on the spray bar (100) of a grounded agricultural spraying equipment, positioned adjacent to a hydraulic nozzle (20) which atomizes the spraying liquid droplets that are released by the nozzle (21) to be electrically charged when passing by induction electrode (151) which creates an electrostatic field that electrically charges the droplets to be directed to the surfaces where the product is to be applied.

[0024] The insulated extender (10) comprises a housing made of hydrophobic material, with a surface preferably provided with fins, said housing (11) being provided with an insulated internal rod (12) with an upper end provided with an opening (121) for the entry of power supply cable (30) connected, at one end, to a high voltage electronic module powered by the tractor battery, and at the opposite end connected to an encapsulated electrical device (13) positioned on said insulated internal rod (12), said electrical device (13) powering said induction electrode (151).

[0025] At the lower end of the insulated rod (12), a spring (14) is arranged, on whose free ends is attached support (15) of the ring induction electrode (151), which surrounds nozzle (21) of the hydraulic nozzle (20), said fixing of the support (15) to the spring (14) facilitating the coupling to the extender (10).

[0026] The induction electrode (151) that surrounds the nozzle (21) of the hydraulic nozzle (20) induces the formation of electric charges in the liquid flow, so that the droplets are electrically charged when leaving nozzle (21) of the hydraulic nozzle (20).

[0027] Preferably, on top of the housing (11) of hydrophobic material an external covering (111) is provided with a surface preferably finned which provides additional protection to the housing (11), preventing the wetting of the insulated internal rod (12).

[0028] Extender (10) is fixed to the spray bar (100) of the spraying equipment by any support ensuring immobility to same.