JPS6031474Y2 - cultivation equipment - Google Patents

Description

[Detailed Description of the Invention] The present invention provides a cultivation device that is capable of efficiently growing plants in a limited space by arranging a plurality of stages of cultivation tanks for cultivating plants.

The embodiment of the present invention will be explained below with reference to the drawings. 1 is a cultivation tank for cultivating plants, which is shaped like a box with an open top;
A perforated plate 2 is erected on the side to divide it into a cultivation chamber 3 and a discharge chamber 4, and the cultivation chamber 3 is filled with gravel 5 so that plants can be planted in the gravel as appropriate.

The cultivation tank 1 has multiple stages of vertical supports (not shown).
etc. are used to arrange it.

Reference numeral 6 denotes a liquid tank for storing the nutrient solution necessary for growing plants, and it is placed below the lowest stage of the cultivation tank 1. 8 to the uppermost stage of the cultivation tanks 1, 1, . . .

Reference numeral 9 denotes a communication pipe that is connected between the upper and lower stages of the cultivation tanks 1, 1, and allows the nutrient solution stored in the upper cultivation tank 1 to flow down to the lower cultivation tank 1, and has an inverted U at the upper end. A letter-shaped portion 10 is formed, the upper open end 11 of which is located at the bottom of the discharge chamber 4 formed in the cultivation tank 1, and the inverted U-shaped portion 1
The apex of 0 coincides with the desired water level of the nutrient solution stored in the cultivation tank 1.

The lower opening 12 of the communication pipe 9 faces the cultivation chamber 3 side filled with the gravel 5 of the cultivation tank 1.

Reference numeral 13 denotes a thin tube that communicates the inner bottom of the discharge chamber 4 of the cultivation tank 1 with the middle of the communication tube 9, and has a diameter that is extremely small compared to the diameter of the communication tube 9.

Also, the cultivation tank 1 at the lowest stage among the communication pipes 9, 9...
The lower opening 12 of the communication pipe 9 provided in the liquid tank 6 is arranged so as to face the inside of the liquid tank 6.

In this configuration, when the water pump 7 is driven, the nutrient solution is sequentially stored in the cultivation tank 1 disposed at the top stage through the suction pipe 8, but in the storage process, a part of the nutrient solution flows into the thin tube. 13, flows into the communication pipe 9, and is allowed to flow down into the cultivation tank 1 arranged in the lower stage, albeit in small quantities.

However, the amount of water sucked up from the water pump 7 is greater than the amount of water flowing down, and eventually reaches the desired water level required for the cultivation tank 1.

On the other hand, the amount of nutrient solution stored in the lower cultivation tank 1 at that time is approximately 173 ml of the desired water amount.

Then, as the nutrient solution in the cultivation tank 1 at the top level reaches the desired water level, the amount of liquid in the communication pipe 9 also reaches its peak, causing a siphon effect and rapidly transferring the stored nutrient solution to the cultivation tank 1 at the lower level. It is something that allows it to flow down.

Of course, the water pump 7 is equipped with a timer T or the like to automatically stop its driving when the amount of water sucked into the cultivation tank 1 on the uppermost stage reaches a desired water level.

In this way, the nutrient solution is allowed to flow down from the upper cultivation tank 1 to the lower cultivation tank, and is finally recovered into the liquid tank 6.

As described above, the cultivation device of the present invention includes cultivation tanks arranged in multiple stages in the vertical direction, a pump that pumps the nutrient solution into the cultivation tank arranged at the top stage until the desired water level is reached, and a pump located in the upper stage. A communication pipe that is connected between the cultivation tanks and causes a siphon effect when the nutrient solution stored in the upper cultivation tank reaches a desired water level; and a thin tube that communicates the middle of the communication pipe with the inner bottom of the cultivation tank. Even if each of the multi-tiered cultivation tanks absorbs a small amount of water, the water pump has already sucked up a sufficient amount of nutrient solution, and the desired amount of water can be reliably sent to all the cultivation tanks. Extremely good plant cultivation can be carried out.

[Brief explanation of the drawing]

The drawing is a schematic cross-sectional view of the proposed cultivation device. 1... Cultivation tank, 7... Water pump, 9
...Communication tube, 13... Thin tube.

Claims (1)

[Scope of utility model registration request] Cultivation tanks arranged in multiple stages in the vertical direction, a water pump that pumps the nutrient solution into the cultivation tank arranged in the uppermost stage until it reaches a desired water level, the cultivation tank located in the upper stage, and the cultivation tank located in the lower stage thereof. A communication pipe that is connected between the cultivation tanks and causes a siphon effect when the nutrient solution stored in the upper cultivation tank reaches a desired water level; and a thin tube that communicates the middle of the communication pipe with the inner bottom of the cultivation tank. Cultivation equipment consisting of: