JP2002253069A - Apparatus for automatically feeding liquid - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus for automatically feeding a liquid capable of continuously and automatically feeding water in a constant amount to a pot, etc., at a prescribed interval and further continuously intermittently and automatically feeding the water in the constant amount to the pot, etc., at the prescribed interval. SOLUTION: This apparatus for intermittently and automatically feeding the liquid comprises a container of a flexible material having a mouth part, a liquid pipe having a plug mounted on the mouth part of the container and provided by passing through the plug, having a liquid feeding port on the outside of the container and installed with a liquid receiving port in the interior of the container, a cup for receiving the liquid fed from the liquid feeding port and a U-shaped pipe mounted on the cup and positioning the liquid receiving port in a position at a lower level than the receiving port outside the cup. The plug is provided with a hole for communicating with the outside air in the upper part of the plug or the container and the liquid pipe is equipped with a liquid flow rate controlling means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water supply device used for automatically and continuously supplying water to a flower pot or the like without using energy such as electric power.

[0002]

BACKGROUND ART Home cultivation of pots is widely performed,
During family trips and camps, which have been increasing in recent years, when family members are away, or when members of the family are busy with work, they forget to water and die potted plants. It often happens. So, don't worry about forgetting to water, and don't let the plants die
Various devices for automatically supplying water have been developed. However, depending on the season, for example, the transpiration is strong in summer and a large amount of water is required, but a small amount of water is required in winter. Depending on the size, it is necessary to change the water supply amount and the water supply speed, but the automatic water supply device used conventionally is constantly supplying water at the time of water supply, and if the water supply speed is too high by plants, it will cause rooting. Also.

[0003]

SUMMARY OF THE INVENTION The present invention is to provide an automatic water supply apparatus which does not have the above-mentioned disadvantages, and to provide a water supply apparatus which continuously and automatically supplies water to a flowerpot or the like.

[0004]

According to the present invention, there is provided a container made of a flexible material having a mouth, a stopper attached to the mouth of the container, and a liquid supply port provided outside the container and provided outside the container. A first liquid pipe having a liquid receiving port inside the container, a cup receiving the liquid supplied from the liquid supplying port of the first liquid pipe, and a liquid receiving port mounted in the cup and positioned in the cup. And a second liquid pipe having a liquid supply port located at a position lower than the receiving port outside the cup, and a stopper or an upper portion of the container is provided with a hole communicating with the outside air, and the first liquid pipe has a liquid. An intermittent automatic liquid supply device provided with a flow control means is provided.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described with reference to the drawings. FIG. 1 shows an intermittent automatic liquid supply device according to the present invention. The container 1 can be sealed with a stopper 2, and the container 1 has a table 6 supported by a spring 7.
It is placed on. The container 1 is a container made of a flexible material, and has a property of being dented when pressed by hand. Such materials include thermoplastic resins such as polyvinyl chloride, polypropylene, polyethylene, and polyethylene terephthalate.

The stopper 2 has a first liquid pipe 4 penetrating the stopper 2 and having a liquid supply port 13 inside the container and a liquid supply port 14 at a position lower than the liquid supply port 13 outside the container. The stopper 2 is provided with an air hole 3. A flow control valve 5 is provided in the first liquid pipe.

In FIG. 1, a cup 8 is attached to a stand 10 and installed so as to receive the liquid supplied from the first liquid pipe 4. The lower end of the stand 10 is a stand, but may be inserted into the flower pot 11 to support the cup. The upper wall of the cup 8 is provided with a hole into which the second liquid pipe 9 can be inserted, and the second liquid pipe 9 is inserted into this hole. In this case, a pipe made of a flexible material may be used as the liquid pipe, or a pipe may be inserted into a hole provided in a wall above the cup 8, and another pipe may be inserted between both ends of the pipe inside and outside the cup 8. The pipes may be connected to form a second liquid pipe. Also,
As shown in FIG. 5, the second liquid pipe 9 may bend the portion 17 in the cup so that the position of the liquid supply port 15 is upward. In the present invention, the shape of the liquid pipe is not limited to U-shape and may be deformed as long as the liquid pipe maintains a relative positional relationship between the receiving port and the supplying port and can form a siphon.

Hereinafter, an embodiment in which the intermittent automatic liquid supply device according to the present invention is used will be described. First, the liquid flow control valve 5 is closed, water is poured into the empty container 1, and U
The liquid receiving port 13 of the first liquid pipe 4 is inserted into the container 1, and the stopper 2 is used to seal the container 1. Then, the container 1 filled with water and plugged is placed on the table 6. The liquid flow control valve 5 is opened, and then the air hole 3 opened in the stopper 2 is manually pressed and sealed, and the flexible container 1 is dented by hand. Then, the water in the container is discharged from the liquid supply port 14 through the liquid pipe 4. Even when the hand is released from the container, the siphon works and the water continues to be discharged from the container 1. The water falls into the cup 8 as a water drop 12, and the water is stored in the cup 8.

By operating the liquid flow control valve 5,
The flow rate can be controlled by increasing or decreasing the water supply rate. When the water stored in the cup 8 reaches a certain level of the cup, the water is supplied to the flower pot by the action of the siphon of the second liquid pipe 9. Further, the amount of water supplied to the flowerpot by one siphon operation is determined by the height h of the liquid receiving port 15 of the second liquid pipe 9 in the cup from the bottom of the cup. As the height h increases, the amount of water discharged by the siphon at one time decreases, but the number of times the siphon works increases.

(Operation) When the liquid flow control valve 5 is opened, the air hole 3 opened in the stopper 2 is closed by hand, and the flexible container 1 is dented by hand. First
The first liquid pipe 4 enters the first liquid pipe 4 from the liquid receiving port 13 of the liquid pipe 4, pushes out the air that has been in the first liquid pipe 4, and passes through the first liquid pipe 4 from the liquid supply port 14. Is discharged. Once the water discharge starts,
Even if the hand holding the air item 3 is released, the siphon works and the water continues to be discharged from the container 1, the water level in the container drops, the water level drops to the liquid receiving port 13, and the air flows into the first liquid. Water enters the pipe 4 and continues to drain from the container 1 until the siphon no longer holds. During this time, the air is
From the container 1, and the air in the container 1 is kept at the atmospheric pressure, and the establishment of the siphon is maintained.

The amount Q of water supplied per unit time from the first liquid pipe 4 is determined by the smaller of the area of the opening of the liquid pipe at the opening 14 or the area of the liquid flow control valve 5 at the narrowest part of the water flow. , Gravity acceleration G, opening 14 and container 1
Assuming that the difference between the heights of the water levels in the space is H, Q = S × (Rout
e (2GH)). The first liquid pipe 4 is fixed by a stand, and the first liquid pipe 4 is
The first liquid pipe 4 remains stationary without moving at the same time as the container 1, so that when the optimal spring is selected,
The water in the container is reduced, the whole container 1 is lightened, and the spring 7
If the height of the water level in the container 1 is kept constant above the ground, H will be constant, and Q will also be constant, and the water per unit time will be constant regardless of the amount of water in the container. The amount will be discharged from the container 1 to the cup 8.

When water drops fall on the cup 8, the cup 8
And the liquid level (a) rises. The rise of the liquid level (a) similarly rises in the second liquid pipe 9, and (b)
Reach the position. Then, as shown in FIG. 2, the water overflows, falls through the second liquid pipe 9 outside the cup 8, and starts falling as a water drop outside the pipe. The air in the pipe is discharged to the outside with the water, and the siphon works.

When the siphon operates, a large amount of water is discharged from the cup 8 by the second liquid pipe 9, and the liquid level (a) falls as shown in FIG. And the liquid level is the second liquid pipe 9
When the liquid is lowered to the position of the liquid receiving port, as shown in FIG.
Air enters the second liquid pipe 9 and the siphon action stops. As described above, when water is supplied from the flexible container 1 through the first liquid pipe 4, water is stored in the cup 8, the water level rises, and when the water reaches a predetermined water level of the cup 8, the water is siphoned. Is discharged and the liquid level drops, the liquid level rises when the siphon stops, and the water is drained by the siphon when the cup 8 is full.

When water is supplied from the container 1 through the first liquid pipe 4 at a constant speed, the siphon works and water is supplied to the flower pot at a constant time interval. If the capacity of the cup 8 to be used is large, the amount of water supplied to the flower pot at one time is large, but the frequency of the water supply is small. If the capacity of the cup 8 to be used is small, the water to be supplied to the flower pot at once is large. The volume is small, but the frequency of water supply is high. When replacing the cup is troublesome, the second liquid pipe 9 is moved to the position 1 as shown in FIG.
7, the position of the liquid receiving port 15 becomes higher, and the amount of water supplied from the cup 8 at one time becomes smaller.
The frequency of water supply can be increased. vice versa,
When the position of the liquid supply port 15 is lowered, the amount of water supplied from the cup 8 at one time increases, but the frequency of water supply decreases.

【The invention's effect】

The intermittent automatic liquid supply device according to the present invention automatically supplies water to the flowerpot, and its supply speed can be freely adjusted by the liquid flow control valve 5, so that the transpiration effect is obtained. Even in severe summers and in winter when a small amount of water is sufficient, it is possible to optimize the amount of water supply and the rate of water supply, regardless of the type of plant and the size of the pot, and to keep the water supply function of the flower pots optimal. In addition, since a fixed amount of water can be supplied intermittently at time intervals, water can be supplied evenly over a wide area of the flower pot in a form that allows water to be absorbed, and water can be continuously supplied only to one location. The water is not supplied and the water is not diffused little by little throughout the plant pot 12, so that there is an effect that rooting is hardly caused.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional view of an intermittent automatic liquid supply device according to the present invention.

FIG. 2 is a diagram showing a state in which water is supplied to a cup from a flexible container, the liquid level rises, and water starts to overflow in a second liquid pipe.

FIG. 3 is a diagram illustrating a state in which a siphon works and water is dropped from a cup through a second liquid pipe.

FIG. 4 is a diagram illustrating a state where all water in a cup is discharged by the action of a siphon.

FIG. 5 is a view in which a second liquid pipe 9 is folded at a bending position 17 so that a liquid receiving port is positioned upward.

[Explanation of symbols]

 Reference Signs List 1 container 2 stopper 3 air hole 4 first liquid pipe 5 liquid flow control valve 6 units 7 spring 8 cup 9 second liquid pipe 10 stand 11 flower pot 12 water drop 13 liquid receiving port 14 liquid supply port 15 liquid receiving port 16 liquid Supply port 17 Refraction position

Claims (1)

[Claims] 1. A container made of a flexible material having a mouth, a stopper attached to the mouth of the container, and provided through the stopper, having a liquid supply port outside the container and a liquid supply port inside the container. And a cup for receiving liquid supplied from a liquid supply port of the first liquid pipe, the liquid supply port being attached to the cup, the liquid receiving port being located inside the cup, and being lower than the receiving port outside the cup. A second liquid pipe having a liquid supply port at a position, a stopper or an upper part of the container provided with a hole communicating with the outside air, and a first liquid pipe provided with a liquid flow rate control means. Automatic feeding device.