JPH01126480A - Automatic water supply valve - Google Patents

Abstract

PURPOSE:To automatically supply water on a constant level to a thing requiring a constant quantity of water by opening and closing a water supply opening with a material which changes in volume according to water content. CONSTITUTION:An automatic water supply valve 1 comprises an outer casing 2 having a water supply pipe connecting port 2a and a water supply opening 2b and an inner casing 3 accommodated in the outer casing, which is made by soft or elastic material and deformed according to its internal pressure to open and close a passage extending from the water supply pipe connecting port 2a of the outer casing 2 to the water supply opening 2b, wherein the interior of the inner casing 3 is filled up with material 4 which changes in volume according to water content. The automatic water supply valve 1 is suitable for supplying water to plants or the like.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an automatic watering pulp, in particular an automatic pulp pulp that is capable of automatically supplying the required amount of water at a constant level to an environment requiring constant water. Concerning water supply pulp.

[Conventional technology]

Plants need to be regularly replenished with a specified amount of water, but the amount of water supplied must take into account the maximum water retention capacity of each soil and replenish the optimum amount of water. be.

Therefore, if the amount of water supplied is too low, the plants will wither, and if the amount of water supplied is too high, the roots will rot and the plants will wither.
Maximum attention must be paid to the amount of water supplied.

Therefore, in order to solve the above problem, a sensor that detects the amount of moisture in the soil is embedded in the soil, the sensor constantly detects the moisture in the soil, and the necessary amount of water is added each time the moisture is depleted. Although a device that supplies water from a water supply device has been developed,
Accurately detects the amount of moisture evaporating from the ground surface into the atmosphere,
It is not possible to accurately grasp the amount of water in the soil at all times and automatically supply the required amount of water when the moisture in the soil falls below a certain value. Further, there were also problems in that the structure of the device was complicated and the manufacturing cost was high.

[Problem that the invention seeks to solve]

The present invention has been made based on the above-mentioned viewpoint, and its purpose is to automatically provide water at a constant level to plants and other things that require a constant amount of water. To provide an automatic water supply valve that can supply water, has a simple structure, and can keep manufacturing costs low.

[Means for solving problems]

Therefore, the above purpose is to provide a water supply pipe connection port in the outer case that is made of a soft or elastic material and deforms according to its own internal pressure, and that is equipped with a water supply pipe connection port and a water supply port. An inner casing that can open and close a passage leading from the mouth to the water supply port is housed, the inner casing is filled with a substance whose volume changes depending on the water content, and a vent is provided from the inside of the inner casing to the outside air. This is achieved by an automatic water supply valve provided.

[For production]

By configuring as described above, it is possible to automatically supply water at a constant level to plants and other things that require a constant amount of water at all times, and the structure is simple and the manufacturing cost is low. It becomes possible to provide an automatic water supply valve that can keep water consumption low.

〔Example〕

Hereinafter, the details of the present invention will be specifically explained with reference to the drawings.

1 and 2 are explanatory diagrams showing one embodiment of the automatic water supply valve according to the present invention. FIG. 1 is an explanatory diagram showing the state during water supply, and FIG. It is an explanatory view showing a stopped state.

In Figures 1 and 2, 1 is an automatic water supply valve, 2 is an outer casing, 2a is a water supply pipe connection port, 2b and 2b are water supply ports, 3 is an inner casing made of synthetic rubber, etc., 4 5 is a substance whose volume changes depending on the water content filled in the inner layer body 3; 5 is the inner layer body 3;
It is a porous body such as a net that covers the opening 3a of the opening 3a.

The outer casing 2 has a water supply pipe connection port 2a connected to a water supply pipe at one end, a wide opening into which the inner layer body 3 is inserted at the other end, and a side wall thereof. A plurality of water supply ports 2b, 2b are formed.

Inside the outer casing 2 is an inner layer 3 made of flexible synthetic rubber or the like.
The inner casing 3 is filled with a substance 4 whose volume changes depending on the water content.

Its own volume changes depending on this water content (water content,
Increases due to swelling etc. ) Substance 4 includes Aqua Keep 4S, Aqua Keep 105H (acrylic acid-based water-absorbing resin, product name of Seitetsu Kagaku Kogyo), Sumikagel R30 and Sumikagel GRC (the former is a polyethylene oxide-based super absorbent polymer, and the latter is a polyethylene oxide-based super absorbent polymer). Molding pellets made by coloring and kneading super absorbent resin 5P-520 and special EVH resin.
Gel fibers of AN)-based resins, other highly water-absorbing acrylate-based polymers, starch-based polymers, cellulose-based polymers, and the like are appropriately used.

Therefore, when the automatic water supply valve 1 according to the present invention is used as an automatic water supply valve that automatically adjusts the amount of water supplied to plants, etc., the water supply port 2b is buried in the soil from the tip of the automatic water supply valve 1. Insert it all the way up, or bury the whole thing in the ground.

The automatic water supply valve 1 is not supplied with water inside the outer casing 2,
Furthermore, when the substance 4 does not contain water, a narrow gap is formed between the inner wall surface of the outer casing 2 and the outer wall surface of the inner casing 4, as shown in FIG. Water supplied into the outer casing 2 is sent to the outside from the water supply ports 2b, 2b through the gap.

However, the substance 4 inside the inner housing 3 is connected to the net 5 of the opening 3a.
Since the substance 4 is in contact with the watered soil through the net 5, as water is supplied to the external soil, the substance 4 absorbs water from the external soil through the net 5 and swells, and is accommodated in the outer casing 2 as shown in FIG. When the substance 4 in the inner casing 3 absorbs water and expands, the inner casing 3 expands and blocks one or both of the water supply pipe connection port 2a and the water supply ports 2b, 2b of the outer casing 2. and stop water supply to the outside.

When the substance 4 inside the inner casing 3 contains water and expands, the water ports 2b, 2b of the outer casing 2 are closed, and the supplied water is sent to the outside from the water ports 2b, 2b. However, when the external soil becomes dry, the substance 4 is in contact with this soil through the net 5 of the opening 3a of the inner casing 3. When the substance 4 inside 3 is dried, the substance 4 shrinks as it dries, and a narrow gap is again formed between the inner wall surface of the outer casing 2 and the outer wall surface of the inner casing 3. The water supplied into the outer casing 2 is sent to the outside soil from the water ports 2b, 2b through the narrow gap.

Therefore, if the amount of substance 4 is appropriately set according to its water absorption and swelling properties, the optimum amount of water will be automatically supplied according to the soil quality and plant properties, so that plants can be grown more efficiently. can be cultivated. Further, the above-mentioned valve of the present invention can be suitably used as a water supply valve for a bath or other water tank, or a valve that sometimes doubles as a water supply level meter.

〔Effect of the invention〕

Since the present invention is structured like a ridge, the present invention automatically supplies water at a constant level to things that require a constant amount of water, such as plants. In addition, the structure is simple, manufacturing costs can be kept low, and there is no need to worry about breakdowns.

Note that the present invention is not limited to the embodiment on ridges. That is, for example, in this embodiment, the automatic water supply valve is an automatic water supply pulp that automatically adjusts the amount of water supplied to plants, etc., but it can also be used as a water level meter, etc. Also,
The material of the inner casing is not limited to synthetic rubber, but any known material can be used as long as it is made of a soft or elastic material and can be deformed according to its own internal pressure. Widely known materials such as gel materials and water polymer materials can be used as materials whose volume changes depending on the water content filled in the body, and the shape of the outer casing and the formation position of the water inlet can also be used. , their number, etc. can be freely changed within the scope of the purpose of the present invention, and the present invention encompasses all of them.

[Brief explanation of the drawing]

FIGS. 1 and 2 are explanatory diagrams showing one embodiment of the automatic water supply pulp according to the present invention. FIG. 1 is an explanatory diagram showing the state during water supply, and FIG. It is an explanatory view showing a stopped state.

Claims (1)

[Claims] Inside the outer casing, which includes a water supply pipe connection port and a water supply port, is made of a soft or elastic material and deforms according to its own internal pressure,
an inner casing that can open and close a passage leading from the water supply pipe connection port of the outer casing to the water supply port; the inner casing is filled with a substance whose volume changes depending on the water content; An automatic water supply valve with a vent that communicates with the outside air.