The watering warning device

 

(57) Abstract:

Usage: in the agricultural industry, in particular in the detectors irrigation of agricultural crops for the correction timing of the start and end of the irrigation of the soil. The inventive detector watering contains a measuring probe with a distance scale and a lid with holes, through which the rod is connected to the strap. Perforated stop rod mounted on the wick, recording soil moisture. Signal reception box through the slot with the slot communicates with the bracket and bar stock. The horizontal part of the bracket and strap rod move freely in the slots of the racks and supports. When the device is in the mode of signaling the beginning of the irrigation set the bar in the slot of the rack and the bracket in the slot of the rack, and cease watering Vice versa. 3 Il.

The invention relates to agriculture, particularly irrigated agriculture.

The purpose of the invention to enhance the functionality of the detector, in particular the issuing them commands at the beginning and end of the irrigation.

In Fig. 1 shows the detector, the section of Fig.2 section a-a in Fig.1; Fig.3 section B-Loy 2 distances the depth of wetting of soil. The top probe 1 contains the cover 3 is located in its center a hole through which missed the end part of the rod 4 is connected, for example, by threaded connection with the securing strap 5. The lower situated in the cavity of the measuring probe 1 part stem 4 has a perforated stop 6 mounted on the feeding wick 7, located on top of the underlying cause of the protective filter 8 and is made of a material that responds to changes in moisture content in the soil by the volume change and the inner wall of the probe 1 contain grease.

The side surface of the measuring probe 1 has a pocket 9 in which is located with the option of fixing the retainer 10 in the desired position, for example by screws, the bracket 11. The signal element of the device is made in the form of rack 12 box 13, with 12 hour supplied starting from its Foundation by the slot 14, ending with a slot 15, through which she has the opportunity to interact with the horizontal part of the bracket 11 and the locking bar 5 of the rod 4. In addition, on both sides of the rack 12 with box 3 are provided with slots 16, the support stand supports 17, which are fixed to the cover 3 by means of, for example, over the underwater occurrence and movement in mutually opposite slots 16 of the supports 17, and in between the slots 14 with the socket 16 of the lower part of the rack 12, and the mode detector start locking strap 5 of the rod 4 is installed in the socket 15 over in the slots 14 of the horizontal part of the bracket 11, in the mode of termination of irrigation, on the contrary, in the socket 15 of the rack 12 mounted horizontal portion of the bracket 11, under which the slot 14 is a retainer strap 5 of the rod 4. The gap between these elements is determined based on the degree of swelling of water supply fuse 7 in relation to the thickness of its layer and calibration data.

Device mode signaling the beginning of the irrigation works in the following way.

Feeding wick 7 as desiccation of the soil loses moisture and shrinks. Water loss occurs both under the influence of Sousa strength of the soil and the evaporation of moisture in the atmosphere. Perforated stop 6 in the structure of the stock 4 facilitates the transfer of vapor moisture in the atmosphere with dewatering water conveyance wick 7 through the gaps between the walls of the stem 4 and the Central hole in the lid 3. The presence of the supports 17 prevents tilting of the rack 2 in a plane parallel to the direction of movement of the locking rod 5. In result in the socket 15 of the rack 12 of the fixing plate 5. Accordingly lowered and hour 12 box 13, thus there is a convergence of the horizontal part of the bracket 11 with the locking bar 5 of the rod 4.

The device is calibrated so that at the time of pre-irrigation soil moisture decrease in the volume of water conveyance wick 7 provides the occurrence of the horizontal part of the bracket 11 from the slots 14 in the slot of the rack 12 box 13. In the locking strap 5 and the horizontal part of the bracket 11 are together in one axis of rotation, which is the socket 15, which leads to loss of the counter 12 generates debaunchery time box 13 sustainability, and it tipped. Thus, the operator is given a signal about the need for watering, before which the device should switch alarm stop watering.

Mode indicator stop watering device operates as follows.

In the process of irrigation, irrigation water is seeping, reaches the bottom of the measuring probe 1. The presence of grease on the outer surface of the measuring probe 1 prevents the wicking of water in the zone of contact of the walls with the soil, thus preventing distortion of the readings of the detector. provideshigh wick 7 is absorbed by them, the wick 7, in turn, increases in volume and raises the rod 4, which leads to the displacement of the locking rod 5 into the slots 14 in the direction of the slot 15. The device is calibrated so that the time of occurrence of the locking rod 5 from the slot 14 slot 15 coincides with the moistening moisture given (root zone) soil layer. At this point, as a result of combining in a single axis of rotation locking rod 5 and the horizontal part of the bracket 11 hour 12 box 13 loses its stability and tips, which serves as the signal to stop watering. Further cycles beginning of irrigation cessation of watering repeated in the described sequence.

The ALERTER IRRIGATION, including subsurface soil hollow measuring probe, having on the outer surface of grease on the top end - cap with a Central hole and a signal element in the form of a rack with a flag associated with passing through the hole of the cover stock, interacting through a fence located in the lower part of the probe feeding the wick and the slot of the rack, wherein the rack is in the lower part of the slot terminating in a socket, and provided with a locking element in the form of bracket is rack, as well as supporting legs having notches and secured to the cover, the horizontal portion of the bracket and the bar stock made with the possibility of free entry and move in mutually opposite slots supports and in between the slots of the rack, and feeding the wick is in contact with the soil through the protective filter material whose volume changes under the influence of moisture, with emphasis rod perforated and the inner wall of the probe is covered with grease.

 

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