(19)
(11) EP 2 815 814 A1

(12) EUROPEAN PATENT APPLICATION

(43) Date of publication:
24.12.2014 Bulletin 2014/52

(21) Application number: 14154254.8

(22) Date of filing: 07.02.2014
(51) International Patent Classification (IPC): 
B05B 12/00(2006.01)
B05B 3/00(2006.01)
B05B 1/00(2006.01)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME

(30) Priority: 20.06.2013 ES 201330769 U

(71) Applicant: Dau Alco Cas, S.L.
46240 Carlet Valencia (ES)

(72) Inventor:
  • Arenes Alcover, Carlos Alberto
    46240 Carlet (Valencia) (ES)

(74) Representative: Ungria López, Javier 
Avda. Ramón y Cajal, 78
28043 Madrid
28043 Madrid (ES)

   


(54) Spraying device for crops


(57) Spraying device for crops connected to a supply pipe system (6), located at a cultivated land intended to be sprayed. The device is formed by a flowmeter (1) regulating the working water flow rate, a pushbutton (2) controlling the undertaking of pulses for the spraying of water, and a head (3) comprising a valve (7) in charge of the spraying of water. The spraying device is located at a certain height on a fixing support (5) in order to reach the entirety of the components of the fruit trees of the plantation.




Description

OBJECT OF THE INVENTION



[0001] The present invention relates to a spraying device to spray water over crops, mainly focused on fruit tree crops, which purpose is not only to water the trees, but to create a moisture layer over the surface of the fruit tree itself and its components, including leaves, stems and the fruits themselves.

[0002] It is especially applicable to the field of the agricultural industry.

TECHNICAL PROBLEM TO BE SOLVED AND BACKGROUND OF THE INVENTION



[0003] In the current state of art, a diversity of methods related to the irrigation of crops is known. The methods mainly focus on the sprinkling technique, by regulating the flow rate and supply schedules.

[0004] One of the current problems consists on the frosts taking place when the trees are at the bloom stage or when they have already given their fruits and the same are ripening. These frosts, which can take place not only during the winter but throughout the year, produce the loss of the majority of the harvest not existing a method to repair the damages caused.

[0005] The present invention solves this problem that has not been solved in the present state of the art with a very small flow rate, which consists on provoking a moisture layer over the total surface of the fruit tree with a drop size larger than the conventional drop size, which leads the drop not to freeze and keep its temperature at 0 °C, thereby providing protection against the frost.

[0006] To achieve the foregoing, water is sprayed over the fruit trees, such that the dampening of the majority of the bloom or the fruits of the trees of the plantation is ensured. This rain is caused by means of a sprinkling system from a considerable height that can cover the entirety of the trees in the working radius of each sprinkler.

[0007] In addition, the spraying system by means of pulses reduces the consumption of water in a significant manner.

DESCRIPTION OF THE INVENTION



[0008] The present invention describes a spraying device for crops connected to a pipe system located in the cultivated land intended to be sprayed. The crops on which this invention is focused are fruit trees, although they might be, without any type of modifications made to the invention, any other type of fruit, vegetable or even surface.

[0009] The spraying device is located at a certain height, fixed to an element, such that it can spray on the product of the crop from above.

[0010] The device is composed of a flowmeter regulating the working water flow rate, a pushbutton controlling the undertaking of pulses for the spraying of water, and a head comprising a valve in charge of the sprinkling of water.

[0011] The spraying device is located at a certain height on a fixing support in order to reach the entirety of the components of the fruit trees of the plantation.

[0012] The pushbutton comprises an expansion chamber wherein water is stored until it is filled, in order to then emit pulses releasing fixed amounts of water and carrying out the irrigation. Said pushbutton has a double effect. On one hand it achieves the emission of water in a broader working radius than with conventional devices. On the other hand, a specific drop size can be achieved, larger than usual, which also improves the efficiency of the device.

[0013] The valve of the sprinkling head causes the hydraulic force exerted by the water on said valve by means of the pulses sent by the pushbutton to generate a spraying in the form of water rings.

BRIEF DESCRIPTION OF THE FIGURES



[0014] In order to complete the invention being described, and for a better comprehension of the features of the invention, according to a preferred embodiment, a set of drawings has been included, representing the following figures in an illustrative rather than limitative manner.
  • Figure 1 represents a frontal view of the spraying device.
  • Figure 2 represents a frontal view of the spraying device in the operating position, placed at a certain height.


[0015] A list of the reference numbers used in the figures is provided below:
  1. 1. Flowmeter
  2. 2. Pushbutton
  3. 3. Head
  4. 4. Irrigation tube
  5. 5. Fixating support
  6. 6. Supply tubes
  7. 7. Valve

DESCRIPTION OF A PREFERRED EMBODIMENT OF THE INVENTION



[0016] The present invention relates to a spraying device intended for the spraying of water over fruit tree crops, with the main purpose of creating a moisture layer over the surface of the fruit tree itself and its components, that is to say, the leaves, the stem and the fruits themselves, such that a temperature drop below 0 °C that could affect the same is avoided.

[0017] As shown in figure 1, the device is formed by a flowmeter (1), which controls the amount of water circulating through the irrigation tube (4) to be sprayed, a pushbutton (2) in charge of the storage of water in an expansion chamber to, after the filling thereof, carry out the pulses with which water to be sprayed is sent, and a sprinkling head (3), which carries out the spraying through a valve (7).

[0018] Figure 2 represents the working situation of the spraying device, placed on a fixing support (5), which holds it at the desired height, and connected to a supply pipe network (6) covering the entirety of the land desired to be irrigated.

[0019] The fruit tree cropland intended to be sprayed is covered by a network of supply pipes (6), which are the ones that take the water towards the irrigation tubes (4), to be sprayed from that point. The entirety of the land is intended to be covered by means of these supply pipes (6), such that the spraying devices are placed distributed throughout the land to be sprayed, taking into account the working area that each of the sprayers is capable of covering.

[0020] As represented in figure 2, we can see that the height at which the spraying device is placed is sufficient to fully reach the entirety of the fruit trees in the working radius of each spraying device.

[0021] The present invention should not be limited to the embodiment described herein. Other configurations can be made by experts in the art based on the present description. Therefore, the scope of the invention is defined by the following claims.


Claims

1. Spraying device for crops connected to a supply pipe system (6) located at a cultivated land intended to be sprayed, characterized in that it comprises:

- a flowmeter (1) regulating the working water flow rate,

- a pushbutton (2) controlling the undertaking of pulses for the spraying of water,

- a head (3) comprising a valve (7) in charge of the spraying of water.

where the spraying device is located at a certain height on a fixing support (5) in order to reach the entirety of the components of the fruit trees of the plantation.
 
2. Spraying device for crops according to claim 1, characterized in that the pushbutton (2) comprises an expansion chamber wherein water is stored until it is filled, in order to then emit pulses releasing fixed amounts of water and carrying out the irrigation.
 
3. Spraying device for crops according to claim 1, characterized in that the valve (7) of the head (3) causes the hydraulic force exerted by the water over said valve (7) by means of the pulses sent by the pushbutton (2) to generate a spraying in the form of water rings.
 




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