OA18977A - The semi-automatic watering can - Google Patents

Abstract

Patent No 18130 / BOPI 02BR / 2018 concerns an innovative maintenance and irrigation device to boost the growth of young tree plants and vegetable gardens. This request for a certificate of addition to patent No 18130 / BOPI 02BR / 2018, called "dripping watering can with semi-automatic programming", represents an additional innovation, simple and very inexpensive to ensure watering of the plants.

Description

DESCRIPTION

INTRODUCTION "The dripping watering can with semi-automatic programming" is an invention which makes it possible to achieve numerous savings of several kinds: (1) water management in advance, we know the quantity of water useful for watering the plants. (2) Labor savings: watering operations are very reduced and allow good planning of other work. (3) Equipment savings: the equipment can be reused several times.

STATE OF THE ART:

The irrigation systems known so far are: 1. the Californian, 2.1e Drip, 3.the Porous Ceramic Vases, 4.1'Dispersion, 5.the Perforated Plastic Sleeves, 6. the Drip underground, 7.1 micro-sprinkler irrigation, 8. sectioned porous pipes. These are systems that require large investments or are subject to electronic devices or cannot be programmable. The innovation developed, called “semi-automatic programming sprinkler watering can”, is a device for supplying water to plants at well-defined time and flow intervals. It is part of the logic of low-tech innovations (low technology), practical and economical. It is a solution for developing countries where local populations are not always literate in order to read and understand directions for use. “The dripping watering can with semi-automatic programming” is also in a “low-cost (low cost / low price) logic.

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SUMMARY DESCRIPTION "The dripping watering can with semi-automatic programming" is based on the eternal, immutable rules of the simple drip system. The invention allows frequent watering with a controlled amount of water and therefore avoids waste. "The semi-automatic watering dripper" has a programmable central brain but the programming is manual. The invention thus makes it possible to determine in a personalized manner the quantity the necessary frequency of waterings. The manual control of the opening of the valves of the pipes for the distribution of water to the drippers guarantees a continuous flow. The drippers are also adjustable, in order to deliver the right dose according to the different needs of the plants and the nature of the soil.

PRESENTATION OF DRAWING FIGURES

Figure 1 Plate l / l gives a view in longitudinal section of the dripping watering can with semi-automatic programming showing at its top the pressure regulator and inside the different pipes connected to the collector which drains the water to the plant in drip.

DETAILED DESCRIPTION OF THE INVENTION "The dripping watering can with semi-automatic programming" consists of a reservoir. Inside the tank is housed a number of pipes of different heights, placed vertically and connected to a dripper located at the base of the tank. Each hose has a valve that can be opened according to the program. According to the programming, each height fl of pipes corresponds to a volume V (V = H x S), S being the internal surface of the tank. Thanks to this formula, it is possible to have several volume levels depending on the height H of the different drainage pipes. A pipe of height H1 drips the desired flow rate from the corresponding volume VI. This allows a scheduled watering, the different volumes (VI ..... Vn) will drop one by one at a rate of xA (x = number of days between two duplicates

On 3 waterings). The water flow rate at the dripper is the same because an adjustment keeps the pressure constant in the tank. A pressure regulator placed at the top of the tank allows to control the regularity of the speed of the water flow. In application of Torricelli's Theorem on 5 the flow of a liquid contained in a tank provided with a small orifice at its base, of section "S", the flow speed is the same as the free fall speed between the free surface and the orifice, whatever the density of the liquid. A change in pressure is equal to the square of the change in flow.

Figure 1 Plate l / l gives a longitudinal section view of the sprinkler 10 dripper with semi-automatic programming amount: at the top the pressure regulator (I), located above the tank (2) inside from which a known number of pipes (3) of different heights is introduced. The base of the pipes is connected to a time programmer (4) and a collector (5) provided with pores from which the drops of water come out which drains the water to the plant.

Claims (2)

1. Device for watering tree seedlings and vegetable crops called "semi-automatic watering dripper", characterized in that it is composed of a tank provided with a semi-timer 5 automatic replenishment of plants with water according to time and flow intervals defined in advance according to the schedule. 2. Device according to claims (l), characterized in that the tank is provided with a pressure regulator and a number of pipes of different heights, connected to a dripper located at the base of the pipes. Each hose has a valve 10 openable according to the program and corresponds to a volume V of water programmed in a time interval.