JP5046217B2 - Plant watering equipment - Google Patents

Description

The present invention relates to a plant water supply apparatus.

Conventional water supply devices for plants include a device in which a plastic bottle filled with water is inserted into a flowerpot or the like (see, for example, Patent Document 1), or a device in which water is supplied to the bottom of a flowerpot (for example, Patent Document) 2), and there is one that controls the solenoid valve using a timer to supply water (for example, see Patent Document 3). In addition, there is a type that opens and closes a water supply valve by utilizing a lever principle based on a weight change caused by water evaporation using a capillary phenomenon (see, for example, Patent Document 4).

In the conventional water supply apparatus described above, even when the soil is moist, water is always supplied, water is forcibly supplied by a timer, or pathogenic bacteria are generated due to decay of water at the bottom of the pot.
In addition, there is a disadvantage that a complicated device for opening and closing the water supply valve and an installation place are limited.

  JP2003-116378   JP-A-7-147851   JP-A-7-95828   JP2008-113637

In the present invention, in order to eliminate the above drawbacks, the preset water supply scheduled date changes according to the dry state of the atmosphere, and there is no decay due to long-term retention of water. The purpose is that water can be supplied just by attaching it to a flower pot, a planter, etc. without requiring a dedicated installation place.

In order to achieve the above object, the present invention provides an evaporator in which an evaporating sheet for absorbing and releasing moisture is attached to a container containing water by capillarity, and water for supplying water for supplying water under the evaporator. The container is combined by a shaft provided in the evaporator and a bearing provided in the water supply container, and plays a role of air inflow and shutoff.

In addition, permanent magnets of the same polarity repelling each other are fixed to face each other on the bottom of the evaporator and the top of the water supply container, and the evaporator floats on the water supply container by the repulsive force.
The evaporator is lightened by the evaporation of water from the evaporation sheet, and gradually rises to a certain height. When the air reaches a certain height, air flows into the water supply container through a notch at the end of the shaft through a hole in the side of the bearing. Water supply starts when the atmospheric pressure rises slightly, and conversely, when water is put into the evaporator and the evaporator is lowered by the weight of the water, the atmosphere is shut off and the water supply is stopped.

Since the water supply apparatus of the present invention does not require a power source or the like, it is possible to prevent malfunctions due to electrical accidents, breakdowns, power outages, and the like.

The planned water supply date can be changed by changing the amount of water in the evaporator according to the water needs of individual plants.

In addition, since the water in the evaporator evaporates according to the dry state of the atmosphere, the water supply will be earlier than the set water supply date if it is dry, and it will be slower if it is wet. It is safe even when you are away.

Since the water supply device is integrated with the evaporator and is suspended, if it is attached to an attachment or the like, the installation location is not particularly limited, and it is possible to supply water from above a flower pot or planter. is there.

Hereinafter, the present invention will be described in detail by the best mode for carrying out the invention shown in the drawings.

In the first embodiment for carrying out the present invention shown in FIGS. 1 and 2, reference numeral 1 denotes a water supply container, 2 denotes an evaporator 3, and an evaporator sheet is attached to an evaporator column 12.

Reference numeral 6 denotes a shaft attached to the evaporator, the tip of which is notched and inserted into the bearing 7.

Reference numeral 11 denotes a permanent magnet for floating the evaporator, and is fixed to the evaporator and the water supply container so that the same poles face each other.

8 is a detachable water supply cap for replenishing water to the water supply container, and 9 is a water supply amount adjusting screw for adjusting the water amount of 10 water supply nozzles. 5 is the scale of the scheduled water supply date.

The operation of the above configuration will be described below. When the evaporator shaft inserted into the bearing of the water supply container containing water is poured into the evaporator until the scheduled water supply date, the evaporator shaft descends due to the weight of the water, and the shaft that was located in the hole on the side of the bearing is cut. The notch part is separated from the hole, passes through the notch part of the shaft from the hole on the side surface of the bearing, and blocks the atmosphere flowing into the water supply container.

In this state, the pressure at the end surface of the water supply nozzle is the sum of the atmospheric pressure and the water pressure as the pressure from the inside of the water supply container. On the other hand, the pressure from the outside of the water supply container is the sum of the atmospheric pressure and the surface tension. When the pressure in the water supply container from the water supply nozzle is smaller than the pressure from the outside of the water supply container, water does not drip, but if it is large, water drops, and the air pressure in the water supply container drops slightly, and the water supply container When it becomes the same as the pressure from the outside, it stops and becomes stable.

From this stable state, the water sucked up by the capillary action of the evaporation sheet evaporates according to the dry state of the atmosphere, and gradually rises as the evaporator becomes lighter. When coming to the hole, air flows into the water supply container from the hole through the notch, and the air pressure in the water supply container slightly increases. Therefore, when the pressure in the water supply container becomes slightly larger than the pressure from the outside of the water supply container, the amount of water set by the water supply amount adjusting screw is dropped and water supply is started.

Different forms for carrying out the invention

Next, different modes for carrying out the present invention shown in FIG. 3 will be described.
In the description of the embodiments for carrying out the present invention, the same components as those of the best first embodiment for carrying out the present invention are denoted by the same reference numerals, and redundant description is omitted.

The second embodiment for carrying out the present invention shown in FIG. 3 is mainly different from the first embodiment for carrying out the present invention in that the notch at the tip portion of the shaft 6 is eliminated and the shaft is hollow. One side was sealed and a hole D was provided.

Further, in the first embodiment, the hole B is provided in the bearing, but in the second embodiment, this is eliminated. Even with the water supply apparatus configured as described above, the same effects as those of the best first embodiment for carrying out the present invention can be obtained.

FIG. 2 is a cross-sectional view of an embodiment of the present invention. This is a system in which the air flows into the water supply container from the hole B on the side surface of the bearing through the notch C at the tip of the shaft.

FIG. 3 is a cross-sectional view at the same position as FIG. And the atmosphere flows into the water supply container from the hole D on the side surface of the hollow shaft through the shaft.

The present invention can be used for support when watering is difficult for persons with disabilities, elderly people, and the like, and when the house or office is away from home or company trips.

  Partial sectional view of the water supply apparatus of the present invention   AA sectional view of Example 1 of the present invention.   AA sectional view of Example 2 of the present invention.   Plan view of the water supply apparatus of the present invention   External view of the present invention attached to an attachment

DESCRIPTION OF SYMBOLS 1 Water supply container 2 Evaporator 3 Evaporation sheet 4 Suspension device 5 Schedule water supply scale 6 Shaft 7 Bearing 8 Water supply cap 9 Water supply adjustment screw 10 Water supply nozzle 11 Permanent magnet 12 Evaporation sheet attachment shaft B Opened in bearing Hole C Shaft notch D Hole drilled in the shaft

Claims (1)

A bearing with a hole in the side and a permanent magnet are provided in the upper part of the water supply container, and the same pole as the magnet provided in the water supply container is provided at the lower part of the evaporator provided with the evaporation sheet. A permanent magnet and a shaft with a notch at the end are arranged, and this is inserted into the water supply container. The pressure in the water supply container changes as the air flows into the water supply container through the notch portion of the shaft and shuts off. A water supply apparatus that starts or stops water supply using the change in pressure.

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