JPH0220945Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The invention relates to a cultivation device for leafy vegetables used in the vegetable cultivation agriculture industry, etc. Specifically, the invention relates to a cultivation device for leafy vegetables used in the vegetable cultivation agriculture industry, etc. Rotating at a predetermined speed, the sunlight received by the leafy vegetables in each cultivation tank,
In addition to uniformizing the cultivation conditions and environment such as temperature and humidity, the culture solution supplied to the cultivation tank is repeatedly drained and supplied at predetermined intervals and replaced, so that the cultivation tank always contains fresh oxygen. This invention relates to a hydroponic cultivation device for leafy vegetables that can be cultivated continuously and automatically by applying a liquid and has high harvest efficiency.

(Prior Art) A gardening device in which a large number of cultivation containers are suspended horizontally from a rotary conveyor is known from Japanese Patent Application Laid-Open No. 52-21132.

This device attaches a so-called flat ring attachment device to a drive wheel that is pivotally supported by a framework, holds four containers for growing materials, and supplies water to the containers while rotating the drive wheel. By matching containers to desired positions, you can plant crops,
It was possible to carry out maintenance such as maintenance and watering in a small space, and the cultivation land could be used effectively.

(Problem to be solved by the invention) In the above-mentioned device, the timing of water supply and drainage to the container is determined by the rotation of the drive wheel, and the fan-shaped part filled with the water to be sent out reaches the container almost at the top. Water is supplied to the container, and water is drained from the container when the fan-shaped part is almost at the bottom. Therefore, when repeating water supply and drainage to these containers, the rotation path of the drive wheel is from the top to the bottom. During the half-stroke, water is supplied and water is stored in the container, but during the remaining half-stroke from the bottom to the top, the water in the container is drained and becomes empty, so the cultivation period in between It dries up and cannot be used for growing leafy vegetables using hydroponics.

Furthermore, when a culture solution is used for water supply, since the supply is a sprinkler type, the solution splashes onto the growing leaves, causing leaf blight.

It had the following problems.

The present invention was developed to solve the above-mentioned problems, and involves rotating a large number of cultivation tanks suspended from a rotating body at a predetermined speed, thereby adjusting the amount of sunlight and temperature that leafy vegetables receive in each cultivation tank. In addition to equalizing the cultivation conditions and environment such as humidity, the culture solution supplied to the cultivation tank is repeatedly drained and supplied at predetermined intervals, and the culture solution containing fresh oxygen is constantly supplied to the cultivation tank. The purpose of this invention is to provide an apparatus for hydroponic cultivation of leafy vegetables that can be continuously and automatically cultivated and has high harvest efficiency.

(Means for Solving the Problems) The means of the present invention for achieving the above-mentioned object are as follows: a rotating body pivotally supported on a machine base; a low-speed rotation means for the rotating body linked to the axis of the rotating body; A cultivation tank in which a plurality of cells are suspended horizontally from a moving body and has a receiving chamber for the culture solution on one side and a drain pipe at the bottom, and a culture solution is supplied to the culture tank in correspondence with the receiving chamber of the cultivation tank. a feeding pipe connected to the drainage pipe of the cultivation tank, and a quantitative drainage means for discharging the culture solution in the cultivation tank when the receiving chamber of the cultivation tank corresponds to the feeding pipe; and the drainage pipe. Cultivation of leafy vegetables, comprising: a storage tank for storing culture solution discharged from the water; a culture solution pump connecting the storage tank and the inlet pipe; and a control means linked to the pump. It is in the configuration of the device.

(Function) The present invention achieves the following functions by virtue of the above-described configuration.

After storing leafy vegetable seedlings in each cultivation tank horizontally suspended from a rotating body, a fixed amount of culture solution is poured inside.

When the rotary body is rotated by operating the low-speed rotation means, the cultivation tank suspended by the rotary body moves from the bottom to the top or from the top to the bottom along the orbit while maintaining its horizontal position. By moving at low speed, the conditions necessary for cultivation, such as sunlight, temperature, and humidity, are applied to the leafy vegetables in the cultivation tank, and the leafy vegetables are grown according to these conditions.

When one of these many rotationally moving cultivation tanks reaches a predetermined rotational position on the machine base, the reception chamber of the cultivation tank corresponds to the culture solution inlet pipe, and the metering chamber linked to the cultivation tank discharge pipe. The drainage means operates to discharge a fixed amount of the culture solution in the tank.

In this case, quantitative determination refers to all, part, or most of the culture solution in the tank.

Simultaneously with the discharge of the culture solution, a pump operated by the control means transports the fresh, oxygen-rich culture solution in the storage tank to the inlet pipe, and the receiving chamber of the cultivation tank corresponding to the position of the inlet pipe. When supplied to
This culture solution fills the tank, so that by operating the control means, the same amount of culture solution as before draining is filled again.

On the other hand, the culture solution discharged from the discharge pipe of the cultivation tank is stored in the storage tank, and the required amount of oxygen is supplied to the culture solution during this transfer.

The above-mentioned supply and drainage of the culture solution to the cultivation tank is carried out without interruption while the rotating body is rotating.

When the culture solution is supplied and drained to one cultivation tank, when the next cultivation tank corresponds to the feed pipe, the culture solution is supplied and drained to the cultivation tank again by the same operation described above. As the moving body rotates in sequence, all the cultivation tanks are given the above-mentioned movements, and the leafy vegetables in the cultivation tank are supplied with sufficient nutrients. The grown leafy vegetables are removed and shipped.

(Example) Next, an example of a leaf vegetable cultivation apparatus according to the present invention will be described based on the drawings.

The present invention is an apparatus for continuously and automatically hydroponically cultivating leafy vegetables such as three-leaf vegetables.

In Figures 1 and 2, A is a rotating body rotatably supported by a shaft 2 horizontally mounted on bearings 3, 3 of a machine base 1.
Swivel arms A, A', B, B', and R', respectively, centered on the shaft 2 are attached to mounting plates 4 and 5 which are pivotally supported on the shaft 2 at predetermined intervals.
Ha, Ha', Ni, Ni', Ho, Ho', He, He', To, To',
A small chain wheel 9 of a low-speed rotation means B consisting of a motor 7 and a reducer 8 is connected to a chain 10 by a large chain wheel 6 provided at one end of the shaft 2.
The rotating body A can be rotated at a low speed.

In addition, in this low-speed rotation, when a trefoil leaf vegetable was used, good results were obtained when the cycle of rotating once every 11 minutes was repeated for cultivation purposes.

Reference numeral 11 designates a plurality of cultivation tanks suspended horizontally on the rotary body A, which store the culture solution 14 filled inside without leaking. A partition plate 16 is mounted on a support frame 13 suspended by shafts 12, 12, and forms a receiving chamber 15 for a culture solution 14 from an inlet pipe 18 inside.

A partition plate 17 is arranged inside the tank 11.
The culture solution 14 is kept uniformly within the container. (See Fig. 3) Reference numeral 18 denotes an inlet pipe for supplying a fixed amount of culture solution 14 to the rotating cultivation tank 11, and its inlet port 18a is connected to the cultivation tank 1.
It is provided so as to correspond to the receiving chamber 15 of the cultivation tank 11 when the cultivation tank 11 rotates downward as the cultivation tank 1 rotates.

Reference numeral 21 denotes a quantitative drainage means for the culture solution 14 provided in the cultivation tank 11, which includes a drain pipe 22 provided at the bottom of the cultivation tank 11, a ball valve 23 corresponding to the opening of the drain pipe 22 so as to be able to be fitted and removed, It is composed of a hanging rod 24 which is fixed to the cultivation tank 11 at one end and suspends the ball valve 23 in the middle.

The drain pipe 22 is always closed by a ball valve 23, and when the culture solution 14 is supplied from the inlet pipe 18, the free end side of the hanging rod 24 hits the guide 25 provided on the machine base 1. Then, the hanging rod 24 is raised, the valve is opened, and the culture solution 14 in the cultivation tank 11 is discharged from the drain pipe 22 by the amount supplied.

The amount of water discharged can be adjusted by adjusting the slope of the guide 25.

26 is a groove for receiving the culture liquid 14 discharged from the cultivation tank 11, and is provided at a position corresponding to the drain pipe 22 of the cultivation tank 11, and this groove 26 is connected to a storage tank 27, and a pump 28 is connected to this storage tank 27. By connecting the inlet pipe 18 of the culture solution 14 through the culture tank 11, the groove 26, the storage tank 27, the pump 28, and the inlet pipe 18, the culture solution 14 is circulated.

S is a control means linked to the pump 28, and is composed of a micro switch 19, a timer 20, and an electromagnetic valve V for operating an on-off valve of the pipeline.

The solenoid valve V is provided in the middle of the pipeline between the feed pipe 18 and the pump 28, and is connected to a micro switch 19 that is attached to the machine base 1 and operated by the swing arms I to E of the shaft 2. The micro switch 19 is linked to a timer 20 connected to the solenoid valve V.

When the rotating cultivation tank 11 reaches a predetermined position, that is, the lowest point on the orbit, the micro switch 19 gives a signal to the solenoid valve V to open the valve, and starts a timer 20 to close the solenoid valve V. By electrically delaying the closing of the valve, a predetermined amount of the culture solution 14 is filled into the cultivation tank 11.

Reference numeral 29 denotes a synthetic resin cultivation bed that is removably housed in the cultivation tank 11. It is formed into a rectangular shape that fits the cultivation tank 11, and has a large number of through holes 30 on its entire surface. Leafy vegetables, such as mitsuba leaves 31, grown weekly are placed in such a way that their roots are constantly immersed in the culture solution 14.

Numeral 32 is a heavy peg provided at the bottom of the support frame 13 of the cultivation tank 11, which balances the front and back of the cultivation tank 11 and maintains the horizontal state of the suspended cultivation tank 11 during rotation.

Next, the operation when cultivating trefoil leaf vegetables using the apparatus of the above embodiment will be explained.

Three leaves 31 that had been previously grown for two weeks by other growing means were put into the through holes 30 of the cultivation bed 29, and the cultivation bed 29 was stored in the cultivation tank 11.

Then, a fixed amount of the culture solution 14 was poured into the cultivation tank 11, that is, up to the bottom surface of the cultivation bed 29.

Subsequently, after putting the cultivation bed 29 and the culture solution 14 into the other cultivation tanks 11 in the same manner as described above, the low-speed rotation means B was driven to rotate the rotation body A.

Then, the cultivation tank 11 suspended by the rotating body A was held in a horizontal state, and the cultivation tank 11 moved along the orbit from the lower part to the upper part or from the upper part to the lower part.

When the rotating arm of the cultivation tank 11 comes into contact with the micro switch 19 of the machine stand 1, as shown in FIG.
1 reception chamber 15, that is, the cultivation tank 11
is located at the bottom of the orbit, and the solenoid valve V
The tank was opened and the culture solution 14 was supplied into the cultivation tank 11.

At this time, at the same time as the supply, the free end side of the hanging rod 24 of the quantitative drainage means 21 comes into contact with the guide 25 of the machine base 1, and the ball valve 23 is lifted to a predetermined position to open the drain pipe 22. The culture solution 14 in the cultivation tank 11 that was initially filled into the tank 26 was discharged.

The same amount of this supply and drainage is carried out without stopping or slowing down the rotation of the cultivation tank 11, the supply amount is set by a timer 20 connected to the solenoid valve V, and the drainage is determined by the length and slope of the guide 25. It was set by

Then, the cultivation tank 1 after the supply and drainage of the culture solution 14 is completed.
1 continues to revolve on the orbit by the rotating body A, and when it reaches the lowest position on the orbit, the other cultivation tanks 11 repeat the same operation as described above, supplying and draining the culture solution 14, We were able to cultivate a large amount of mitsuba leaves with high quality in a short period of time.

The water supply and drainage to the cultivation tank 11 is from one of the cultivation tanks 11.
This is done once per circumference, and the discharged culture solution 14 passes through the groove 26 and accumulates in the storage tank 27.
The stored culture solution 14 was again supplied to the cultivation tank 11 from the feed pipe 18 by the pump when the cultivation tank 11 reached the lowest position.

This circulating use of the culture solution 14 made it possible to use the culture solution 14 effectively and reduce the economic burden placed on the culture solution 14.

(Effects of the invention) As mentioned above, the leafy vegetable cultivation apparatus according to the present invention is a rotary type in which a plurality of cultivation tanks are suspended from a rotary body that rotates at a predetermined low speed by a low-speed rotary means. As a result, the vegetables grown in this way can be uniformly exposed to growing environment conditions such as sunlight, temperature, and humidity in all cultivation tanks suspended by rotating bodies, which requires expensive growing environment control equipment and other necessary equipment. Since this method does not require , leafy vegetables can be grown effectively at low cost.

Furthermore, since this device has a means of rotating the cultivation tank on a rotating orbit, the cultivation area for leafy vegetables is approximately twice as much as when only flat land is used, so the cultivation area can be effectively used. It can be used for

In addition, the device of the present invention performs cultivation while repeatedly supplying the culture solution to the cultivation tank every time the cultivation tank rotates, and draining the supplied amount of water until the cultivation is completed. Leafy vegetables are constantly immersed in an oxygen-rich culture solution and can absorb nutrients, resulting in high quality, good cultivation efficiency, and a significant shortening of the cultivation period.

In particular, with this device, the supply of culture solution and its drainage are carried out in a fixed amount at the same working position, so there is no need to over-supply the culture solution or move the culture solution around when it is empty. can be fed to leafy vegetables.

In addition, since this culture solution is filled into the cultivation tank, it does not come into direct contact with the leafy vegetables being cultivated, unlike the conventional watering system, so there is no risk of leaf withering due to contact with the culture solution. You can always harvest high-quality leafy vegetables at a high yield.

It has an exceptional effect.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of a leaf vegetable cultivation apparatus according to the present invention. FIG. 2 is an explanatory diagram of the main parts of the same as above. FIG. 3 is a perspective view of the same cultivation tank as above. FIG. 4 is a perspective view of the guide portion same as above. In the figure, 1 is the machine base, 2 is the shaft, A is the rotating body, and B
14 is a low-speed rotation means, 14 is a culture solution, 15 is a receiving chamber, 22 is a drain pipe, 18 is an inlet pipe, 21 is a quantitative drainage means, 27 is a storage tank, 28 is a pump, and S is a control means.

Claims (1)

[Scope of utility model registration request] A rotating body pivoted on the machine base, a low-speed rotation means for the rotating body linked to the axis of the rotating body, and a plurality of units suspended horizontally on the rotating body, with a culture solution receiving chamber on one side and a bottom part. A cultivation tank provided with a drainage pipe, an inlet pipe that corresponds to a receiving chamber of the cultivation tank and supplies a culture solution to this cultivation tank, and a delivery pipe connected to the drainage pipe of the cultivation tank and connected to the inlet pipe. a quantitative drainage means for discharging the culture solution in the cultivation tank when the reception chamber of the cultivation tank is ready; a storage tank for storing the culture solution discharged from the drain pipe; and the storage tank and the inlet pipe. 1. A cultivation device for leafy vegetables, comprising: a culture solution pump connected to the pump; and a control means linked to the pump.