"POT FOR PLANTS AND FLOWERS WITH IRRIGATION SYSTEM"
The present invention relates to a pot for plants and flowers, and particularly a pot provided with a system for irrigating the contents thereof, for example plants and flowers. The known irrigation equipments for pots for plants and flowers provide that pipes are placed on the surface of the loam of the pots. Several diversions provided with nozzles suitable for sprinl ing water are obtained from the piping. In order to irrigate the plants automatically and at regular intervals, the distribution of water in the pots is regulated by a timer which acts on an electrovalve which opens and closes the water flow according to the programming. These known irrigation systems, which provide that pipes and of the relevant diversions and accessories are directly placed on the surface of the loam of the pots, have the drawback to give an unpleasant appearance also because of the great amount of material visible among the plants or the flowers. These systems, moreover, are directly exposed to the atmospheric agents, both in warm periods and in the cold season, therefore, the plastic material with which they are usually carried out, is directly and constantly subjected to thermal shocks and tends to lose its technical features. In winter, when the irrigation system is inactive, the water that unavoidably remains inside the pipes is subjected to freezing, in particular because of the cold wind. This causes cracking and breakages of the pipes which cause losses of water when the irrigation equipment is activated. It is therefore necessary to remove and replace the faulty part of the equipment. Furthemiore, in summer the pipe tends to expand, because of the long and direct exposure to the sun, and thus the sudden thermal decrease, which takes place when the water curcent is activated, causes a thermal shock. In addition, the strong pressure of the water tends to disconnect the pipes inserted by pressure in the pipe fittings. This is also due to the fact that usually the pipes are not secured to the walls of the pots. Thus the pipes which come off the pipe fitting cause the interruption of the water flow in the interrupted pipe or in
the whole irrigation line. Another drawback of the known irrigation systems is that when there are more pots, they are generally connected by an extension of the equipment set on the first pot by connecting the subsequent pots simply by adding pipes in series through new pipe fittings and diversions. This method is unsuitable since in this way the nozzles connected in series and distributed on the surface of the loam to achieve the dispersion of water in the pot cause losses of pressure and therefore the flow of water in the pots connected at the end of the line is unavoidably insufficient. A further drawback of the known pots with irrigation system is related to their moving or to the adding of further pots. As a matter of fact, when the pots must be moved or a new pot must be added later on, the various pipes placed on the surface of the loam are binding. For moving or adding pots, it is thus necessary to interrupt or to cut the pipes placed between one pot and another one and to reconstruct the water irrigation system once the new pots have been areanged. The recovered material cannot be reused because the single portions of pipes which have been cut or removed from the different pipe fittings are not suitable anymore for the changed needs. Moreover just the disconnection and the subsequent connection of the recovered pipes on the single joints of the nozzles and the diversions, cause a mechanic stress of the plastic material which will break exactly in the connection point because of the subsequent changes in pressure and temperature to which the pipe is subjected when the automatic inϊgation is started. DE 29518397 discloses a pot for plants and flowers with an irrigation device integrated under the upper edge of the same pot, which is provided with a device with suitable holes for distributing the water. However, this pot is not provided with any device suitable for adjusting the flow of water so that the dispersion of loam could occur because of too compact or too strong jets. AT 393611 discloses a pot for plants and flowers which has an irrigation system provided with nozzles, carried out on one side of the pot. This system is, however, applied in a well visible manner and thus it compromises the aesthetic
appearance of the pot. The object of the present invention is therefore to provide a pot for plants and flowers with an irrigation system free from the above mentioned drawbacks.
This object is achieved with a pot with an inigation system whose main features are specified in the first claim while other features are specified in the remaining claims. The pot for plants and flowers according to the present invention provides that the irrigation system is hidden under the upper edge of the pot in order to ensure a pleasant appearance thereto. As a matter of fact, the particular construction and conformation of the whole canalization plant of the water is invisible. Said system is furthermore characterized by high flexibility, quick repleceability of the nozzles and easiness of coupling and uncoupling the various components and the pots connected in series. The user, as a matter of fact, may decide, after he has bought the product, which embodiment of the pot he wants to obtain and he can pass from one embodiment to the other by disassembling and assembling the irrigation system in a suitable manner. The pot according to the present invention is constructed in such a way to not cause losses of pressures even when the interconnected pots are numerous. In the pot with the integrated irrigation system according to the present invention it is particularly easy to replace the single nozzles without damaging in any manner the remaining irrigation plant and without disconnecting the pipes for conveying water. Further advantages and features of the pot for plants and flowers with the irrigation system according to the present invention will be clear to those skilled in the art from the following detailed and non-limiting description of some embodiments thereof with reference to the attached drawings wherein: - figure 1 shows an exploded view of the pot with irrigation system according to a first embodiment of the invention; - figure 2 shows an exploded view of the pot with irrigation system according to a second embodiment of the invention;
- figure 3 shows an exploded view of the pot with irrigation system according to a third embodiment of the invention;
- figure 4 shows an exploded view of the pot with irrigation system according to a fourth embodiment of the invention; - figure 5 shows an exploded view of a first connector of the irrigation system according to the present invention;
- figure 6 shows a front view of the connector of figure 5;
- figure 7 shows a top view of the connector of figure 5;
- figure 8 shows a cross-sectional view of the connector of figure 5; - figure 9 shows an exploded view of a fourth connector for the pot according to the present invention:
- figures from 10 to 12 show a top, front and perspective view, respectively, of a , sixth connector for the pot according to the present invention;
- figures from 13 to 15 show a top, front and perspective view, respectively, of a second connector for the pot according to the present invention;
- figures from 16 to 18 show a top, front and perspective view, respectively, of a third connector for the pot according to the present invention;
- figure 19 shows a partial sectional view of the pot of figure 3. Referring to figures 1 to 4, it is shown that the pot with irrigation system according to the present invention comprises a container 1 having substantially the shape of a upwardly open parallelepiped. According to the invention, the upper edges 2 of said container 1 are suitably shaped to form at least one perimetrical canal which is downwardly open in order to contain the irrigation system. The latter, which is therefore, hidden by the upper and the lateral walls of said edges 2, comprises irrigation pipes which form a main branch suitable for connecting container 1 with the water inlet and outlet pipes and for connecting it with other pots. A secondary diversion branch, suitable for conveying the water to irrigate the pot, departs from the main branch. The main branch is essentially made up of a semirigid main pipe 8; the secondary branch comprises a semirigid secondary pipe 9, a tap or other flow intercepting means 20, a semirigid elbow pipe 10, at least a first connector 14, a
further pipe 11 and a closing plug 18. In the first and in the third embodiments, shown in figures 1 and 3, respectively, said first connectors 14 are two and are arranged on the same axis parallel to the longer sides of container 1, while in the second and in the fourth embodiments, shown in figures 2 and 4, respectively, they are four, two arranged in a manner similar to the first and the third embodiment and the remaining two arranged on the shorter sides of container 1. In order to avoid losses of pressure, the secondary branch is carried out in such a way to not form a closed circuit with the main branch and is therefore blind. The main branch allows the interconnection of the irrigation system with the subsequent pots, through connectors 19, 21, 23, 31, 33, without interruptions or losses of pressures in this branch. The second connector 19 is provided with a central body wherein a water inlet is obtained, as shown in figures 14 and 15. An external pipe is connected to this inlet by means of a third comiector 31, known in the field under the name of nipple. This third connector 31, according to the present invention, is substantially cylindrical and is provided with a rim and with a threaded end suitable for rapidly connecting and disconnecting a fourth connector 23. Said rim can have a toothed profile, as shown in figures 17 and 18, or a straight one. Referring to figure 9, it is seen that the fourth connector 23 has a threaded end in order to allow the coupling with a water inflow/outflow pipe, or with closing means 25, according to the needs. The second connector 19 is further provided with at least one water outlet.
In the present embodiments, said water outlets are two and have circular grooves. One of said water outlet of the second connector 19 is connected to one end of the main semirigid pipe 8 in order to be firmly fixed thereto, the other outlet being connected to one end of the secondary semirigid pipe 9. These outlets, after the assembly, are aligned to pipes 8, 9 to which they are connected. Said second connector 19 can have, at the inlet, a tlirough hole, as shown in figures 14 and 15, or it may be provided with a protrusion with an opening, according to the member to which it has to be connected, hi particular, in the first
two embodiments, it is provided with a protrusion, while in the second two it is provided with through hole. The first connector 14, shown in detail in figures 5 to 8, is preferably carried out in a plastic material or in a metal fusion. It is characterized by a ftuictional shape suitable for performing numerous functions with a single device. The first connector 14 comprises a water inlet 28 and outlet 28' which are both threaded and suitable for connecting the water canalizing pipes 9, 10 and 11. The latter are studied with respect to diameter, color and material according to the aesthetic and functional result to be obtained and, once they have been inserted on said inlet 28 and outlet 28 ' , they are firmly fixed. The inlet 28 and outlet 28' of the first connector 14 are aligned with said pipes 9, 10, 11 after the assembly. The first connector 14 further comprisess a head 32 which extends in the direction perpendicular to the axis of said inlet; 28 and outlet 28' and is suitable for being inserted into a hole 5 obtained in corLtainer 1, so as to flow the water inside container 1 by means of nozzles 16. As a matter of fact this head 32 is suitable for supporting a nozzle 16, fixed thereto thirough a ring nut 17 or rapid connection rings. Figure 8 shows that the water duct 30, aligned with pipes 9, 1 0, 11 is arranged higher than the central axis of head 32 of the first connector 14. Once the first connector 14 has been assembled at the hole 5, the water canalizing pipes 8, 9, 10, 11 are completely hidden and protected in the canal of edge 2 which, in the present embodiments, have a semicircular section, as it is shown in figure 8. In this way they are protected from bad weather, cold wind, UV rays, direct exposition to the sun and, at the same time, they confer a pleasant appearance to the integrated irrigation plant. As a matter of fact, after the assembly, the only visible parts are the ring nuts 17. The nozzles 16, according to the present invention, can be replaced by blind nozzles 29. The latter are completely similar to nozzles 16, but without openings and thus they do not allow the discharge of water. They can be used when it is not necessary to inlet water from all the nozzles present on one branch of the piping. According to the present invention, below the head 32 of the first connector
14 there is a tongue 13 suitable for being inserted into a corresponding cavity 6 made in container 1 below hole 5 in order to prevent the first connector 14, once it has been inserted into hole 5, from rotating around the longitudinal axis of head 32. A circular groove suitable for housing an O-ring 15 which, in this way, is locked in the housing even during the replacement of nozzle 16 is carried out on head 32 of the first connector 14. The O-ring 15 is suitable for ensuring the wet seal of nozzle 16 contacting it and, once it has been inserted into the groove, it becomes integral with head 32 of the first connector 14 thanks to the pressure produced by the ring nut 17. This ring nut 17 ensures a rapid connection and discom ection and allows an easy and quick replacement of nozzle 16. The latter is in fact interchangeable so as to allow the changing of the water jets, according to the needs. The jets can in fact be fan-shaped, cone-shaped, sprayed or nebulized according to the type and dimension of the plants present in the pot and to the needs of the user. The ring nut 17 is frontally provided with a substantially rectangular hole for the water passage which, after the assembly, is aligned with the hole of nozzle 16. The ring nut 17 is further provided with two teeth 12, made on its lateral surface, suitable for preventing the relative motion between the ring nut 17 and nozzle 16. In this way, when the ring nut 17 rotates, it rotates also nozzle 16. The water flow in the blind branch, comprising the semirigid elbow pipe 10, the further pipe 11 and the first connectors 14, is adjusted through the suitable tap 20. The latter is provided with a water inlet and outlet, provided with circular grooves, suitable for connecting the semirigid pipe 9 and the semirigid elbow pipe 10 which, once they have been inserted, are firmly fixed to tap 20. In this way it is possible to adjust the water flow in a single pot without affecting the flow in the main branch, the latter flow being independent from the derived branch. For this reason flow variations do not occurs even in the pots subsequent to the first. The two ends of the main branch 8 are connected to one outlet of the second connector 19 and to a fifth connector 21, respectively. This fifth comiector 21 extends on two substantially perpendicular levels and has a central body wherein a
threaded cylindrical opening suitable for screwing and unscrewing the third connector 31 is made. The latter can be connected to the fourth connector 23, shown in detail in figure 9, to which the water inflow/outflow pipe is connected. If the pot is one or is the last of the series of the pots to be irrigated, it is possible to screw, in the opening of the fifth connector 21, closing means 25 instead of the third connector 31. The semirigid main pipe 8, according to the present invention, is fixed onto the lateral wall of container 1 through fixing means 24 preferably inserted into holes 27 arranged on a lateral wall of container 1. Figures 3 and 4 show the third and the forth embodiment of the invention obtained by adding to the first and the second embodiment, respectively, a timer 7, suitable for allowing the automatic management of the water flow by opening and closing an electrovalve. Said timer 7 can be electronic or electromechanic, powered by a battery or at a high voltage and can be provided with a display for displaying data. In the present embodiments, timer 7 is arranged inside container 1, next to a lateral wall. It is possible to program the timing both for the single pot and for the group of pots interconnected in series to the pot provided with timer 7. The latter can be activated and deactivated at any time and is provided with a container 37 suitable for insulating it. Container 37 is provided with a window 40 for housing a battery, if necessary, a lid 39, preferably made of a transparent material, hinged thereto by means of two hinges 38, as well as a gasket 34 fitted for ensuring a wet seal. Container 37, once it has been arranged inside the pot, is substantially invisible from the outside. According to the third and the fourth embodiment of the present invention, container 1 has, on its lateral surface, two removable plugs 26 at a lower hole 3 and an upper hole 4 which, once they have been removed, allow the passage of respectively a third connector 31 and a sixth connector 33, shown in detail in figures 10 to 12. These third and sixth connectors are suitable for allowing the connection of timer 7 to the irrigation system. Obviously container 37 has an
upper threaded hole 35 and a lower threaded hole 36 which corresponds to holes 4, 3 of the wall of the pot and wherein the two connectors 33, 31 are screwed. Said lower hole 36 and said upper hole 35 are suitable for allowing the inlet and the outlet, respectively, of the water in the container, where the flow is adjusted by means of a valve controlled by timer 7. The sixth connector 33, before being screwed into hole 35 of container 37, is inserted into the inlet of the central body of a second connector 19, arranged between them. This sixth connector 33 has a threaded end and the other end provided with a handle head. It is further provided with windows suitable for axially diffusing the water coming out from hole 35 so as to flow it in the pipes 8, 9. The third connector 31 is screwed into the threaded hole 36 of container 37. The wet seal of the various parts is ensured by O-rings 15. All the connectors 14, 19, 21, 23, 31, 33 belong to the rapid connection type. It is obvious that the embodiments hereinabove described and illustrated are only non- limiting examples of the invention, as a matter of fact assembling in a different manner pipes 8, 9, 10, 11, connectors 14, 19, 21, 23, 31, 33 and the further components of the pot with irrigation system, and according to the choice of using timer 7 or not, it is possible to obtain different embodiments. Further variations and/or additions may be made by those skilled in the art without departing from the scope of the same invention.