JP4705501B2 - Vertical hydroponics equipment - Google Patents

Description

  The present invention relates to a hydroponic cultivation apparatus.

  Traditionally, plants have been cultivated in soil. Plants grow by absorbing nutrients from the soil, but not only nutrients, but also pests and bacteria that prevent the growth of the plant and eventually cause the plant to die. Therefore, hydroponics that absorbs the nutrients necessary for plant growth from the nutrient solution by immersing the roots of the plant in a nutrient solution containing water and fertilizer, without using the soil where these pests may grow However, it is widely used for the cultivation of vegetables and houseplants.

  In hydroponics, the nutrient solution is stored in a cultivation tank, and the plant is planted so that the roots are immersed in the nutrient solution of the cultivation tank. Moreover, when the nutrient solution of a cultivation tank reduces by absorption of the nutrient solution by a plant or evaporation of the nutrient solution itself, a nutrient solution is added to a cultivation tank by arbitrary methods. In this way, by soaking the roots of the plant in the nutrient solution, the plant can absorb nutrients necessary for growth from the roots. That is, since plants absorb nutrients only from nutrient solution, management of fertilizer concentration relative to water is very important.

  However, when the water in the nutrient solution evaporates, the concentration of the nutrient solution increases. Therefore, plants that have absorbed such nutrient solution may have excessive nutrients, which may hinder growth. In addition, since the nutrient solution does not flow in the state where the nutrient solution is stored in the cultivation tank, the oxygen in the nutrient solution is reduced, and the root of the plant immersed in such a nutrient solution absorbs oxygen. It cannot be done and causes root rot.

Then, the siphon type cultivation apparatus (patent document 1) which filled the inside of a cultivation box with a granular material, planted a plant in the granular material, supplied nutrient solution, and installed the siphon type drainage pipe in such a cultivation box. Proposed. In this way, by draining the nutrient solution stored in the cultivation box with the siphon-type drainage pipe, for example, even if a constant amount of the nutrient solution is continuously supplied to the cultivation box, the water level of the nutrient solution is a predetermined high level. If it goes up, since the nutrient solution of a cultivation box is discharged | emitted, the state filled with the nutrient solution in the cultivation box and the state which extracted the nutrient solution are repeated. Therefore, the nutrient solution having a substantially constant concentration can be continuously supplied.
JP-A-10-75671

  However, in such a siphon type cultivation apparatus, since the granular material for the plant to root is required, even if all of the nutrient solution in the cultivation box is discharged, the plant root is moistened with the nutrient solution. Since it remains buried in the granular material, it cannot be said that the roots of the plant have sufficiently absorbed oxygen, and it has not yet prevented root rot.

  Moreover, the siphon part of the siphon type cultivation apparatus generates a suction sound when air is sucked. This suction sound is a muddy sound when the siphon part is exposed. Since this suction sound is cloudy, it is regarded as noise or noise. Therefore, the person around the siphon type cultivation apparatus that generates this muddy sound feels uncomfortable with this muddy sound.

  Therefore, it is desired to provide a siphon-type cultivation apparatus that can effectively prevent plant root rot and can change the nature of the sound generated from the siphon portion.

  The present invention has been made in view of the above-described problems. The purpose is to provide a siphon-type hydroponic cultivation apparatus that can effectively prevent root rot of plants and change the nature of sound generated from siphon parts.

  In order to achieve the above object, the present invention provides the following.

(1) A cultivation tank for storing a nutrient solution to be absorbed by a plant, an inflow means for allowing the nutrient solution to flow into the cultivation tank, an inlet for sucking the nutrient solution of the cultivation tank, and a nutrient solution sucked from the inlet Outflow means having a discharge port to be discharged to the outside of the cultivation tank, a separate suction port for sucking the nutrient solution of the cultivation tank, and a separate discharge for discharging the nutrient solution sucked from the separate suction port to the outside of the cultivation tank Another outflow means having an outlet, and the cultivation tank has a support means for supporting the plant at an upper portion thereof, and the outflow means is substantially below the support means in the cultivation tank. and an inverse U-shape which is formed in the siphon portion comprising a curved top portion from the guide引部a derivation portion extending in a substantially vertical direction in a vertical way electrically引部said culture vessel extending direction connecting the outlet section a, said further outlet means extends substantially in the vertical direction in the culture tank Betsushirube引部And a separate siphon portion in which the formed with another lead portion extending substantially vertically in the cultivation tank from said other conductive引部an inverted U-shape consisting of a separate top curved connecting said further lead portion, wherein The suction port is disposed in the vicinity of the bottom in the cultivation tank, the discharge port is disposed outside the cultivation tank and below the siphon part, and the height from the bottom of the cultivation tank to the separate suction port Unlike the height from the bottom of the cultivation tank to the suction port, the height from the bottom of the cultivation tank to the top of the other is substantially the same as the height from the bottom of the cultivation tank to the top. A hydroponics device.

  According to the invention of (1), the cultivation tank for storing the nutrient solution, the inflow means for introducing the nutrient solution, the suction port for sucking the nutrient solution, and the nutrient solution sucked from the suction port are discharged to the outside of the cultivation tank. The hydroponics apparatus provided with the outflow means which has a discharge port was provided with the support means which supports a plant in the upper part of a cultivation tank. Thereby, a plant can be supported by a support means. Therefore, it is not necessary to fill the inside of the cultivation tank with the granular material for the plant to root, so by discharging the nutrient solution stored in the culture layer by the outflow means, the plant root is entirely turned into air. Touch and absorb oxygen. Therefore, the root decay of the plant can be effectively prevented by causing the plant root to absorb sufficient oxygen. Moreover, since a granule is not required and cultivation is possible only with a nutrient solution, the hydroponic cultivation apparatus can be reduced in size and weight.

  Also, the outflow means is provided with a siphon portion formed in the cultivation tank, and the suction port of the outflow means is arranged near the bottom of the cultivation tank, and the discharge port of the outflow means is outside the cultivation tank and the siphon portion. Arranged below. Thus, by providing a siphon part in a drainage means, it becomes possible to make a cultivation tank into the shape extended in the perpendicular direction, for example, and the exclusive area of a hydroponic cultivation apparatus can be made small.

  Moreover, since the suction port of the outflow means is arranged in the vicinity of the bottom in the cultivation tank, it is possible to replace almost all of the nutrient solution stored in the cultivation tank, so that the concentration of the solution is kept constant. And the growth of the plant becomes good. For example, if a vegetable is cultivated, the umami of the vegetable is improved.

  Furthermore, since the nutrient solution in a cultivation tank does not stagnate, it can prevent that a child is generated on the inner wall of a cultivation tank. In this way, by preventing the occurrence of baby seeds, for example, even when the cultivation tank is formed of a translucent material, the cleanliness of the hydroponic cultivation apparatus itself is maintained by maintaining the transparency of the cultivation tank. For example, the hydroponic cultivation apparatus can be installed in a place where a clean feeling is required for the appearance of a store or the like.

  In addition, for example, when the nutrient solution in the cultivation tank is discharged to the outside of the cultivation tank by the outflow means, when the water level is lowered to the position where the suction port is disposed, air is sucked together with the nutrient solution to generate a suction sound. This inhalation sound is murky when heard directly and is uncomfortable. However, the siphon part which becomes a generation source of this suction sound is formed in the cultivation tank. Therefore, it is possible to make the suction sound resonate in the cultivation tank and to make the property of the sound heard outside the cultivation tank different from the property of the sound when the suction sound is generated. Therefore, the siphon-type hydroponic cultivation apparatus which can prevent the root rot of a plant effectively and can change the property of the sound generated from a siphon part can be provided.

In addition, a separate outflow means having a separate suction port, a separate discharge port, and a separate siphon portion is provided, the height from the bottom of the cultivation tank to the separate suction port, and the height from the bottom of the cultivation tank to the suction port. The height from the bottom of the cultivation tank to the other top is substantially the same as the height from the bottom to the top of the cultivation tank. Thereby, since the height from the bottom part of a cultivation tank to another suction port and the height from the bottom part of a cultivation tank to a suction port differ, the shape of the siphon part used as the generation source of a suction | inhalation sound and another siphon part differs. Therefore, the nature of the suction sound is also different. Moreover, since the timing at which the water level drops to the position where the suction port and the separate suction port are arranged is different, the timing at which the suction sound is generated is also different. Therefore, since the sounds audible on the outside of the cultivation tank resonate with various timings, it is possible to produce more diverse sounds. Moreover, since the height from the bottom of the cultivation tank to the top of the cultivation tank is substantially the same as the height from the bottom of the cultivation tank to the top, the maximum water level of the nutrient solution stored in the cultivation tank can be kept constant. The plant roots can be immersed in the nutrient solution to the proper position.

(2) The hydroponic cultivation apparatus according to (1), wherein the siphon portion is elastic, and the outflow means slidably penetrates the bottom of the cultivation tank.

According to the invention of (2), the inverted U-shaped top can be arranged at an arbitrary position of the siphon part by making the siphon part elastic. Since the outflow means slidably penetrates the bottom of the cultivation tank, the distance from the top of the siphon portion formed in the cultivation tank to the bottom of the cultivation tank can be obtained by pulling out the outflow means from the bottom of the cultivation tank. Can be changed. Thereby, for example, when storing the nutrient solution in the cultivation tank, when the nutrient solution flows into the cultivation tank from the inflow unit, and the nutrient solution in the cultivation tank reaches the top of the siphon part of the outflow unit, from the characteristics of the siphon The nutrient solution in the cultivation tank is sucked from the suction port of the outflow means, and discharged from the discharge port of the outflow means to the outside of the cultivation tank. Therefore, the water level of the nutrient solution stored in the cultivation tank can be changed by changing the distance from the top to the bottom of the cultivation tank. Therefore, for example, the water level of the nutrient solution stored in the cultivation tank can be adjusted to an appropriate height in accordance with the type of plant to be cultivated and the degree of growth of the plant. Can be prevented.

(3) The inside of the cultivation tank has a cylindrical shape extending in a substantially vertical direction, and the inflow means has an inlet for allowing nutrient solution to flow into the cultivation tank, and the inlet is inside the cultivation tank. The hydroponic cultivation apparatus according to (1) or (2), wherein the hydroponic cultivation apparatus is arranged in a direction substantially tangential to a wall.

According to invention of (3), the inside of the cultivation tank was made into the cylindrical shape, and the inflow port was arrange | positioned toward the substantially tangential direction of the inner wall of a cultivation tank. Therefore, the nutrient solution flowing in from the inlet flows down while rotating along the inner wall of the cultivation tank, so that the nutrient solution in the cultivation tank can be stirred and the concentration of the nutrient solution can be made uniform.

(4) The hydroponic cultivation apparatus according to (3), wherein the inflow port is disposed above a top portion of the siphon portion.

According to the invention of (4), the inflow port is disposed above the top of the siphon part. Therefore, since it becomes possible to make a nutrient solution flow in from a position always higher than the highest water level of the nutrient solution stored in the cultivation tank, the nutrient solution is dropped on the water surface of the nutrient solution stored in the cultivation tank and foamed. Thus, it is possible to stir the air and the nutrient solution. Therefore, since the plant root can absorb oxygen from the nutrient solution, the root rot of the plant can be more effectively prevented.

  According to the present invention, the cultivation tank for storing the nutrient solution, the inflow means for flowing the nutrient solution, the suction port for sucking the nutrient solution, and the discharge port for discharging the nutrient solution sucked from the suction port to the outside of the cultivation tank; The hydroponic cultivation apparatus provided with the outflow means which has the support means which supports a plant in the upper part of the cultivation tank was provided. Thereby, a plant can be supported by a support means. Therefore, it is not necessary to fill the inside of the cultivation tank with the granular material for the plant to root, so by discharging the nutrient solution stored in the culture layer by the outflow means, the plant root is entirely turned into air. Touch and absorb oxygen. Therefore, the root decay of the plant can be effectively prevented by causing the plant root to absorb sufficient oxygen.

Also, the outflow means is provided with a siphon portion formed in the cultivation tank, and the suction port of the outflow means is arranged near the bottom of the cultivation tank, and the discharge port of the outflow means is outside the cultivation tank and the siphon portion. Arranged below. Thereby, for example, when draining the nutrient solution in the cultivation tank to the outside of the cultivation tank by the outflow means, when the water level drops to the position where the suction port is disposed, the air is sucked in together with the nutrient solution, and a suction sound is generated. . This suction sound is a cloudy sound when directly heard and makes you feel uncomfortable, but since the siphon part that is the source of this suction sound is formed in the cultivation tank, the suction sound is generated in the cultivation tank. It is possible to make the nature of the sound heard outside the cultivation tank different from the nature of the sound when the suction sound is generated. Therefore, the siphon-type hydroponic cultivation apparatus which can prevent the root rot of a plant effectively and can change the property of the sound generated from a siphon part can be provided. Furthermore, it is possible to produce more diverse sounds, and it is possible to immerse the roots of the plant in a nutrient solution to an appropriate position.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing an appearance of a hydroponic cultivation apparatus 1 according to Example 1 of the present invention.
FIG. 2 is a side view showing an appearance of the hydroponic cultivation apparatus 1 according to the first embodiment of the present invention.

  As shown in FIG. 1 or FIG. 2, the hydroponic cultivation apparatus 1 includes a cultivation tank 11 that stores a nutrient solution 3 that is absorbed by a plant 2, an inflow means 12 that causes the nutrient solution 3 to flow into the cultivation tank 11, and a nutrient solution And outflow means 13 for discharging 3 to the outside of the cultivation tank 11. Moreover, the hydroponic cultivation apparatus 1 stores the nutrient solution 3 flowing into the cultivation tank 11, and stores the nutrient solution 3 discharged outside the cultivation tank 11, and an upper portion of the nutrient solution tank 16. And a nutrient solution tank stand 17 that supports the cultivation tank 11.

  Moreover, the hydroponic cultivation apparatus 1 is based on the amount of inflow per unit time of the nutrient solution 3 that flows into the cultivation tank 11 by the inflow unit 12, and per unit time of the nutrient solution 3 that is discharged to the outside of the cultivation tank 11 by the outflow unit 13. There are more emissions.

  The cultivation tank 11 has a cylindrical shape extending in a substantially vertical direction, and a side wall 112 is erected on the edge of the bottom 111. The cultivation tank 11 is formed of a resin having translucency. A particularly optimal shape of the cultivation tank 11 is a cylindrical shape having an inner diameter of 200 mm and a height of 800 mm.

  The bottom portion 111 is a substantially circular plate-like body, and a through hole 113 through which the outflow means 13 passes is formed at the approximate center of the bottom portion 111. The inner diameter of the through hole 113 is slightly smaller than the outer shape of the outflow means 13. Moreover, the circumference | surroundings of the part in which the through-hole 113 of the bottom part 111 is formed are formed with the rubber material. In addition, oil is applied to the inner wall of the through hole 113.

  The side wall 112 of the cultivation tank 11 is a cylindrical body standing upright in a substantially vertical direction. The side wall 112 is connected to an inlet 121 of the inflow means 12 for allowing the nutrient solution 3 to flow into the cultivation tank.

  A support means 15 for supporting the plant 2 is installed on the upper part of the cultivation tank 11, and the support means 15, the bottom part 111 and the side wall 112 form an internal space of the cultivation tank 11.

  The support means 15 is a plate-like body having a thickness capable of supporting the plant 2, and has substantially the same shape as the inner shape of the side wall 112 of the cultivation tank 11. In addition, a hole slightly smaller than the outer shape of the stem of the plant 2 to be planted in the cultivation tank 11 is formed at the approximate center of the support means 15. The support means 15 is made of, for example, urethane resin. In addition, if the support means 15 is a material which can penetrate the plant root 21 downward, for example, a net or the like can be used.

  The inflow means 12 includes an inflow port 121 connected to the cultivation tank 11, an inflow pipe 122 having one end connected to the inflow port 121, a landing pump 123 to which the other end of the inflow pipe 122 is connected, Is provided.

  The inflow port 121 is connected to the cultivation tank 11 in a substantially tangential direction inside the side wall 112 of the cultivation tank 11. Moreover, the inflow port 121 is arrange | positioned above the top part 133c of the siphon part 133 of the outflow means 13 mentioned later.

  The inflow pipe 122 is a cylindrical long body. A particularly optimum shape of the inflow pipe 122 is a cylindrical body having an inner diameter of 20 mm. The landing pump 123 is electric and is installed at the bottom of the nutrient solution tank 16 to be described later. Further, a filter for preventing the dust floating in the nutrient solution 3 from being sucked is installed at the suction port of the nutrient solution 3 of the landing pump 123. In addition, if the member equivalent to the landing pump 123 of the inflow means 12 is a member that can flow the nutrient solution 3, for example, a faucet that is constantly applied with water pressure and can change the water pressure with a handle. It may be. In this embodiment, the landing pump 123 is connected to the other end of the inflow pipe 122, but it can also be connected to the center of the inflow pipe 122. Moreover, the nutrient solution 3 can also be made to flow in into the some cultivation tank 11 from one landing pump 123. FIG.

  The outflow means 13 is a cylindrical long body. One end side of the outflow means 13 is disposed inside the cultivation tank 11. Moreover, the outflow means 13 penetrates the through-hole 113 formed in the bottom part 111 of the cultivation tank 11 so that a slide is possible, and the other end side of the outflow means 13 is arrange | positioned outside the cultivation tank 11. FIG.

  An inlet 131 for sucking the nutrient solution 3 in the cultivation tank 11 is formed on one end side of the outflow means 13. Further, a discharge port 132 for discharging the nutrient solution 3 sucked from the suction port 131 to the outside of the cultivation tank 11 is formed on the other end side of the outflow means 13. In addition, a siphon portion 133 is formed between the inlet 131 and the outlet 132 of the outflow means 13. The outflow means 13 is made of a translucent material.

  The suction port 131 is disposed in the vicinity of the bottom 111 in the cultivation tank 11 toward the bottom 111.

  The discharge port 132 is arrange | positioned toward the nutrient solution tank 16 mentioned later on the outer side of the cultivation tank 11, and the downward direction of the siphon part 133 mentioned later.

The siphon portion 133 is formed in an inverted U shape below the support means 15 installed in the cultivation tank 11. The siphon portion 133 is made of an elastic material. Furthermore, the siphon portion 133 includes a guide引部133a toward the suction port 131 extends substantially vertically way direction in the culture tank 11, a derivation unit 133b toward the discharge port 132 extending in a substantially vertical direction in the culture tank 11 A curved top portion 133c connecting the lead-out portion 133a to the lead-out portion 133b. A particularly optimum distance from the bottom 111 to the top 133c of the cultivation tank 11 is 700 mm.

  The nutrient solution tank 16 is a box-shaped body whose upper surface is open, and a rectangular plate-state side wall is erected on the edge of the bottom of the rectangular plate-shaped body. The nutrient solution tank 16 is made of a translucent material.

  The nutrient solution tank mount 17 is a plate-like body and is installed so as to cover approximately half of the upper surface of the nutrient solution tank 16. In addition, a concave portion having a shape slightly larger than the outer diameter of the bottom of the cultivation tank 11 is formed in a substantially central portion of the nutrient solution tank mount 17. In addition, a hole into which the outflow means 13 arranged outside the cultivation tank 11 can be inserted is provided in the concave portion of the nutrient solution tank mount 17. That is, the cultivation tank 11 is detachably installed on the nutrient solution tank mount 17.

The flow of the nutrient solution 3 of the hydroponic cultivation apparatus 1 will be described with reference to FIGS. 3 and 4.
FIG. 3 is a cross-sectional view of the cultivation tank 11 showing the flow of the nutrient solution 3 that has flowed into the cultivation tank 11 from the inflow means 12.
FIG. 4 is a partial cross-sectional view of the hydroponic cultivation apparatus 1 showing changes in the water level of the nutrient solution in the cultivation tank 11.

  As shown in FIG. 4, the nutrient solution 3 is poured into the cultivation tank 11 from the inlet 121 of the inflow means 12 connected to the side wall 112 of the cultivation tank 11. The inflow port 121 is connected to the side wall 112 in a substantially tangential direction inside the side wall 112 of the cylindrical body. Therefore, the nutrient solution 3 flows down while rotating along the side wall 112.

  As shown in FIG. 3, the nutrient solution 3 that has flowed in from the inflow unit 12 is stored from the bottom 111 of the cultivation tank 11, and reaches a water level 32 that is an arrangement position of the top portion 133 c of the siphon portion 133 formed in the outflow unit 13. Stored. Then, the nutrient solution 3 is sucked from the suction port 131 of the outflow means 13 and discharged from the discharge port 132 of the outflow means 13 to the outside of the cultivation tank 11 due to the siphon effect of the siphon portion 133. Then, since there is more outflow amount of the outflow means 13 than inflow amount of the inflow means 12, the water level of the nutrient solution 3 in the cultivation tank 11 also falls gradually. Thereafter, the water level of the nutrient solution 3 drops to the water level 33 where the suction port 131 of the outflow means 13 is disposed. Then, the outflow means 13 sucks air from the suction port 131 and cannot keep the siphon effect. Therefore, the nutrient solution 3 is not discharged to the outside of the cultivation tank 11.

  Moreover, the nutrient solution 3 discharged | emitted from the discharge port 132 of the outflow means 13 to the outer side of the cultivation tank 11 flows down into the nutrient solution tank 16, and is stored. Thereafter, the nutrient solution 3 stored in the nutrient tank 16 is sucked up by the landing pump 123 of the inflow unit 12 and again through the inflow pipe 122 of the inflow unit 12 from the inlet 121 of the inflow unit 12. Is flowed into. In this way, by circulating the nutrient solution 3, the nutrient solution 3 does not stay in the hydroponic cultivation apparatus 1, so that the concentration of the nutrient solution 3 can be kept constant. Furthermore, since the hydroponic cultivation apparatus 1 circulates the nutrient solution 3 in the vertical direction, the installation space can be reduced.

  Further, the nutrient solution 3 is sucked from the suction port 131 of the outflow means 13 and discharged from the discharge port 132 of the outflow means 13 to the outside of the cultivation tank 11 due to the siphon effect of the siphon portion 133. Then, the water level of the nutrient solution 3 falls to the water level 33. Then, the outflow means 13 sucks air and generates a sucking sound. This suction sound reverberates in the cultivation tank 11, and the sound that can be heard outside the cultivation tank 11 changes to a cultivation tank sound 4a or 4b, which will be described later, having a different sound property from the suction sound.

The cultivation tank sound 4a or 4b which the hydroponic cultivation apparatus 1 emits is demonstrated using FIG. 5 (A), (B) and FIG. 6 (A), (B).
FIG. 5 (A) is a perspective view of the hydroponic cultivation apparatus 1 in a state before the cultivation tank sound 4a is generated.
FIG. 5B is a perspective view of the hydroponic cultivation apparatus 1 in a state where the cultivation tank sound 4a is generated.

  As shown in FIG. 5A, the water level of the nutrient solution 3 in the cultivation tank 11 has reached the water level 32 that is the position of the top 133 c of the siphon part 133. Then, the nutrient solution 3 is sucked from the suction port 131 of the outflow means 13 by the siphon effect of the siphon part 133 and discharged from the discharge port 132 of the outflow means 13 to the outside of the cultivation tank 11. Then, as shown to FIG. 5 (B), the water level of the nutrient solution 3 falls to the water level 33. FIG. Then, the outflow means 13 sucks air and generates a sucking sound. This inhalation sound is murky when heard directly and is uncomfortable. However, the siphon portion 133 that is the source of the suction sound is formed in the cultivation tank 11. Therefore, the suction sound resonates in the cultivation tank 11, and the sound that can be heard outside the cultivation tank 11 changes to the cultivation tank sound 4a having a different sound property from the suction sound.

Next, the cultivation tank sound 4b generated by the hydroponic cultivation apparatus 1 when the vertical position of the top portion 133c of the siphon portion 133 is changed will be described.
FIG. 6 (A) is a perspective view of the hydroponic cultivation apparatus 1 in a state before the cultivation tank sound 4b is generated.
FIG. 6B is a perspective view of the hydroponic cultivation apparatus 1 in a state where the cultivation tank sound 4b is generated.

  The outflow means 13 is drawn from the bottom 111 of the cultivation tank 11 on the side of the outflow means 13 where the discharge port 132 is provided. Thereby, the height from the bottom part 111 of the top part 133c is lower than the height from the bottom part 111 of the top part 133c shown to FIG. 5 (A), (B).

  As shown in FIG. 6 (A), the water level of the nutrient solution 3 in the cultivation tank 11 reaches the water level 32 a that is the position of the top 133 c of the siphon part 133. Then, the nutrient solution 3 is sucked from the suction port 131 of the outflow means 13 and discharged from the discharge port 132 of the outflow means 13 to the outside of the cultivation tank 11 due to the siphon effect of the siphon portion 133. Then, as shown to FIG. 6 (B), the water level of the nutrient solution 3 falls to the water level 33a. Then, the outflow means 13 sucks air and generates a sucking sound. This suction sound reverberates in the cultivation tank 11, and the sound that can be heard outside the cultivation tank 11 changes to a cultivation tank sound 4b having a different sound property from the suction sound.

  Moreover, when FIG. 5 (B) and FIG. 6 (B) are compared, since the height from the bottom part 111 to the top part 133c differs, the magnitude | size of the siphon part 133 in the cultivation tank 11 used as the generation source of a suction | inhalation sound is Different. Therefore, since the suction sound in the case of FIG. 5 (B) and the suction sound in the case of FIG. 6 (B) are different, the cultivation tank sound 4a and the cultivation tank sound 4b have different characteristics. Therefore, the cultivation tank sound can be changed to various sounds by changing the suction sound according to the length with which the side where the discharge port 132 of the outflow means 13 is provided is pulled out from the bottom 111 of the cultivation tank 11.

FIG. 7 is a perspective view showing the appearance of the hydroponic cultivation apparatus 1a according to the second embodiment of the present invention.
As shown in FIG. 7, the hydroponic cultivation apparatus 1 a includes a rectangular cultivation tank 11 a that stores a nutrient solution 3 that is absorbed by the plant 2, an inflow unit 12 that causes the nutrient solution 3 to flow into the rectangular cultivation tank 11 a, And outflow means 13 for discharging the liquid 3 to the outside of the rectangular cultivation tank 11a. Moreover, the hydroponics apparatus 1a stores the nutrient solution 3 which flows into the rectangular cultivation tank 11a, and stores the nutrient solution 3 discharged to the outside of the rectangular cultivation tank 11a, and the nutrient solution A nutrient solution gantry 17a that is provided in an upper part of the tank 16 and supports the rectangular cultivation tank 11a.
In addition, description about the same structure as the above-mentioned hydroponics apparatus 1 is abbreviate | omitted.

  The square cultivation tank 11a has a rectangular tube shape extending in a substantially vertical direction, and a side wall 112a is erected on the edge of the bottom portion 111a. The square cultivation tank 11a is formed of a resin having translucency.

  The bottom 111 is a substantially rectangular plate-like body, and another through-hole 113a through which the outflow means 13 passes is formed at the approximate center of the bottom 111a. The inner diameter of the separate through-hole 113 a is formed slightly smaller than the outer shape of the outflow means 13. Moreover, the circumference | surroundings of the part in which the another through-hole 113a of the bottom part 111a is formed are formed with the rubber material. Moreover, fats and oils are apply | coated to the inner wall of another through-hole 113a.

  The side wall 112a of the rectangular cultivation tank 11a is formed from four plate-like bodies that are erected in a substantially vertical direction. The side wall 112a is connected to the inlet 121 of the inflow means 12 for allowing the nutrient solution 3 to flow into the cultivation tank.

  The support means 15a which supports the plant 2 is installed in the upper part of the square cultivation tank 11a, and this support means 15a, the bottom part 111a, and the side wall 112a form the internal space of the square cultivation tank 11a.

  The support means 15a is a plate-like body having a thickness capable of supporting the plant 2, and has substantially the same shape as the inner shape of the side wall 112a of the rectangular cultivation tank 11a. In addition, a hole slightly smaller than the outer shape of the stem of the plant 2 to be planted in the rectangular cultivation tank 11a is formed at the approximate center of the support means 15a. The support means 15a is made of, for example, urethane resin. In addition, if the support means 15a is a material which can penetrate the plant root 21 downward, for example, a net or the like can be used.

  Thus, by making the cultivation tank into a square shape, and in particular, making the cross-sectional shape of this rectangular cultivation tank into a square shape, for example, when arranging a plurality of cultivation tanks or stacking at the time of transportation of the cultivation tank, it is a useless space Can be reduced.

FIG. 8: is a fragmentary sectional view of the hydroponic cultivation apparatus 1b which shows the water level change of the nutrient solution of Example 3 of this invention.
As shown in FIG. 8, the hydroponic cultivation apparatus 1 b includes a separate outflow means 14 in addition to the outflow means 13 in addition to the configuration of the hydroponic cultivation apparatus 1. In addition to the through hole 113, another through hole 113 a is formed in the bottom 111 of the cultivation tank 11. In addition, description about the same structure as the above-mentioned hydroponics apparatus 1 is abbreviate | omitted.

  The separate outflow means 14 is a cylindrical long body. One end side of the separate outflow means 14 is disposed inside the cultivation tank 11. Moreover, the separate outflow means 14 penetrates the other through-hole 113a formed in the bottom part 111 of the cultivation tank 11 so that a slide is possible, and the other end side of the separate outflow means 14 is arrange | positioned outside the cultivation tank 11. As shown in FIG.

  A separate suction port 141 for sucking the nutrient solution 3 of the cultivation tank 11 is formed on one end side of the separate outflow means 14. In addition, another discharge port 142 for discharging the nutrient solution 3 sucked from the separate suction port 141 to the outside of the cultivation tank 11 is formed on the other end side of the separate outflow means 14. Further, a separate siphon portion 143 is formed between the separate suction port 141 and the separate discharge port 142 of the separate outflow means 14. Further, the separate outflow means 14 is formed of a translucent material.

Another suction port 141 is arranged in the vicinity of the bottom 111 in the cultivation tank 11 toward the bottom 111.
The separate discharge port 142 is arranged on the outside of the cultivation tank 11 and below the separate siphon portion 143 to be described later, toward the nutrient solution tank 16 to be described later.

Another siphon portion 143 is formed in an inverted U shape below the support means 15 installed in the cultivation tank 11. The separate siphon portion 143 is formed of an elastic material. Another siphon portion 143, and another conductive引部143a toward the other intake port 141 extends substantially vertically way direction in the culture tank 11, toward the other outlet 142 extends in a substantially vertical direction in the culture tank 11 A separate lead-out portion 143b and a curved separate top portion 143c that connects the separate lead-out portion 143b to the separate lead-out portion 143b.

  Moreover, the height from the bottom 111 of the cultivation tank 11 to the separate inlet 141 is different from the height from the bottom 111 to the inlet 131, and the height from the bottom 111 to the separate top 143c is from the bottom 111 to the top 133c. It is arranged at almost the same height as the height.

The flow of the nutrient solution 3 of the hydroponic cultivation device 1b and the cultivation tank sound 4a or 4c generated by the hydroponic cultivation device 1b will be described with reference to FIGS. 9 (A), (B), and (C).
FIG. 9A is a perspective view of the hydroponic cultivation apparatus 1b in a state before the cultivation tank sound 4a or 4c is generated.
FIG. 9B is a perspective view of the hydroponic cultivation apparatus 1b in a state where the cultivation tank sound 4c is generated.
FIG. 9C is a perspective view of the hydroponic cultivation apparatus 1b in a state where the cultivation tank sound 4a is generated.

  As shown in FIG. 9A, the nutrient solution 3 that has flowed in from the inflow means 12 is formed in the water level 32 that is the arrangement position of the top portion 133c of the siphon portion 133 formed in the outflow means 13 and in the separate outflow means 14. The water level 32 which is the arrangement position of the other top portion 143c of the another siphon portion 143 is stored. Then, the nutrient solution 3 is sucked from the suction port 131 of the outflow means 13 and discharged from the discharge port 132 of the outflow means 13 to the outside of the cultivation tank 11 due to the siphon effect of the siphon portion 133. Then, since there is more outflow amount of the outflow means 13 than inflow amount of the inflow means 12, the water level of the nutrient solution 3 in the cultivation tank 11 also falls gradually. Thereafter, the water level of the nutrient solution 3 drops to the water level 33a, which is the position where the separate inlet 141 of the separate outflow means 14 is disposed. Then, the separate outflow means 14 sucks air from the separate intake port 141 and cannot continue the siphon effect. Thereby, the separate outflow means 14 does not discharge the nutrient solution 3 to the outside of the cultivation tank 11. Thereafter, the water level of the nutrient solution 3 in the cultivation tank 11 is further lowered, and the water level to the water level 33 where the suction port 131 of the outflow means 13 is arranged is lowered. Then, the outflow means 13 sucks air from the suction port 131 and cannot keep the siphon effect. Thereby, the outflow means 13 does not discharge the nutrient solution 3 to the outside of the cultivation tank 11.

  As shown in FIG. 9B, the separate outflow means 14 sucks air and generates a sucking sound. This suction sound resonates in the cultivation tank 11, and the sound that can be heard outside the cultivation tank 11 changes to a cultivation tank sound 4c having a different sound property from the suction sound.

  As shown in FIG. 9C, the outflow means 13 sucks air and generates a sucking sound. This suction sound resonates in the cultivation tank 11, and the sound that can be heard outside the cultivation tank 11 changes to a cultivation tank sound 4a having a different sound property from the suction sound.

  9B is compared with FIG. 9C, the height from the separate suction port 141 of the separate outflow means 14 to the separate top 143c, and the height from the suction port 131 of the outflow means 13 to the top 133c. Is different. Therefore, the size and shape of the different siphon part 143 in the cultivation tank 11 that is the source of the suction sound and the siphon part 133 are different. Further, the water level of the nutrient solution 3 differs between when the separate outflow means 14 generates the suction sound and when the outflow means 13 generates the suction sound. Therefore, the size of the space filled with the air in the cultivation tank 11 that resonates the suction sound is different. Therefore, the cultivation tank sound 4c due to the suction sound from the separate outflow means 14 and the cultivation tank sound 4a due to the suction sound from the outflow means 13 differ not only in the timing of sound generation but also in the sound properties.

FIG. 10 is a perspective view showing the appearance of the hydroponic cultivation apparatus 1c of Example 4 of the present invention.
As shown in FIG. 10, the hydroponic cultivation apparatus 1c connects the some cultivation tank 11b which has the same function as the cultivation tank 11 of the above-mentioned hydroponic cultivation apparatus 1 by the connection part 20, and is made into the some cultivation tank 11b. It installs in the nutrient solution tank mount 17a for a water, and has arrange | positioned in the upper part of the nutrient solution tank 16a for several cultivation tanks.

FIG. 11 is a perspective view of the connecting portion 20 of the cultivation tank 11b.
As shown in FIG. 11, the cultivation tank 11b has a cylindrical shape extending in a substantially vertical direction, a bottom portion is formed at one end, a side wall 112b is erected at an end edge of the bottom portion, and an opening is formed at the other end. Moreover, the cultivation tank 11b is formed with resin which has translucency. Moreover, it has the connection part 20 in the outer surface of the side wall 112b of the cultivation tank 11b.

  The connection part 20 is formed in the edge part by the side which has opening of the cultivation tank 11b. Moreover, the connection part 20 has the convex part 116 whose cross-sectional shape of the direction parallel to the formation surface of the bottom part of the cultivation tank 11b is a T shape, and the recessed part 115 which is a shape which this convex part 116 can engage with. Prepare. This convex part 116 and the recessed part 115 are formed in the position which mutually opposes in the diameter direction of the opening of the cultivation tank 11b.

Next, the procedure of connecting the two cultivation tanks 11b by the connecting unit 20 will be described with reference to FIG.
FIG. 12 is a perspective view of the connecting portion 20 showing a procedure for connecting the two cultivation tanks 11b.

  As shown in FIG. 12, the recessed part 115 of the other cultivation tank 11b is arrange | positioned above the convex part 116 of one cultivation tank 11b among the two cultivation tanks 11b, and is made to mutually approach from a substantially perpendicular direction. Then, the concave portion 115 is inserted into the convex portion 116, and the convex portion 116 and the concave portion 115 are engaged. Thereby, since the some cultivation tank 11b can be united, the intensity | strength and stability as the whole hydroponic cultivation apparatus 1c improve. Moreover, since the some cultivation tank 11b is connected by the member which has the predetermined | prescribed magnitude | size called the connection part 20, even when a lot of cultivation tanks 11b are connected, the whole external appearance of the hydroponic cultivation apparatus 1c can be taken. It can be.

  Moreover, when isolate | separating the two connected cultivation tanks 11, it can isolate | separate by moving so that it may mutually cross | intersect from a perpendicular direction. Thereby, since it is not necessary to use a screw etc. as a connection member, for example, the some cultivation tank 11b can be connected easily and can be isolate | separated. Therefore, the layout according to the installation place and application of the hydroponic cultivation apparatus is possible.

FIG. 13: is a perspective view which shows the external appearance of the hydroponic cultivation apparatus 1d of Example 5 of this invention.
As shown in FIG. 13, the hydroponic cultivation apparatus 1d connects a plurality of square-shaped cultivation tanks 11c with a connecting portion 20a, and installs them on a nutrient solution gantry 17c for the plurality of cultivation tanks 11c. It arrange | positions at the upper part of the nourishing liquid tank 16a. The square cultivation tank 11c also has the same function as the square cultivation tank 11a of the hydroponic cultivation apparatus 1a described above.

FIG. 14 is a perspective view of the connecting portion 20a of the rectangular cultivation tank 11c.
As shown in FIG. 14, the square cultivation tank 11 c is a rectangular tube shape extending in a substantially vertical direction, a bottom is formed at one end, a side wall 112 c is erected at the edge of the bottom, and an opening is formed at the other end. Have. Moreover, the square-shaped cultivation tank 11c is formed with resin which has translucency. Moreover, it has the connection part 20a in the outer surface of the side wall 112c of the square-shaped cultivation tank 11c.

  The connection part 20a is formed in the edge part by the side which has opening of the square-shaped cultivation tank 11c. Moreover, the connection part 20a is provided with the convex part 116a which has a nail | claw part in a front-end | tip part, and the recessed part 115a which is a shape which this convex part 116 can engage. The convex portion 116a and the concave portion 115a are respectively formed on the side walls 112c facing each other of the rectangular cultivation tank 11c.

  The convex part 116a has a pair of claw parts facing each other. The set of claw portions is formed at one end and the other end of the side wall 112c in the horizontal direction. Moreover, the convex part 116a is extended along the side wall 112c substantially orthogonal to the side wall 112c in which the convex part 116a was formed. Moreover, the convex part 116a is formed with the raw material which can be elastically deformed.

Next, the procedure for connecting the two rectangular cultivation tanks 11c by the connecting portion 20a will be described with reference to FIG.
FIG. 15 is a perspective view of a connecting portion 20a showing a procedure for connecting two square-shaped cultivation tanks 11c.

  As shown in FIG. 15, the convex part 116a of one square-shaped cultivation tank 11c and the concave part 115a of the other square-shaped cultivation tank 11c are arrange | positioned so that it may mutually oppose, and it is substantially Approach each other from the horizontal direction. Then, the tip of the concave portion 115a abuts on the convex portion 116a, elastically deforms the convex portion 116a, and is inserted into the base end portion of the convex portion 116a, and the convex portion 116a and the concave portion 115a engage with each other. Thereby, since the some square cultivation tank 11c can be united, the intensity | strength and stability as the whole hydroponic cultivation apparatus 1d improve. Moreover, the convex part 116a of the connection part 20a which connects the some square-shaped cultivation tank 11c is extended along the side wall 112c substantially orthogonal to the side wall 112c in which the convex part 116a was formed. Therefore, even when a large number of square-shaped cultivation tanks 11c are connected, the connecting portion 20a does not protrude, so that the overall appearance of the hydroponic cultivation apparatus 1c can be balanced.

Next, the procedure for separating the two rectangular cultivation tanks 11c will be described with reference to FIG.
FIG. 16 is a perspective view of the connecting portion 20a showing a procedure for separating the two rectangular cultivation tanks 11c.

  As shown in FIG. 16, when separating the two square cultivation tanks 11c, they can be separated by moving them so as to cross each other from the vertical direction. Thereby, since it is not necessary to use a screw etc. as a connection member, for example, the several square cultivation tank 11c can be connected easily and can be isolate | separated. Therefore, the layout according to the installation place and application of the hydroponic cultivation apparatus is possible.

  As mentioned above, although the Example was described, this invention is not limited to this.

It is a perspective view which shows the external appearance of the hydroponic cultivation apparatus of Example 1 of this invention. It is a side view which shows the external appearance of the hydroponic cultivation apparatus of Example 1 of this invention. It is sectional drawing of the cultivation tank which shows the flow of the nutrient solution flowed into the cultivation tank from the inflow means. It is a fragmentary sectional view of the hydroponic cultivation apparatus which shows the water level change of the nutrient solution in a cultivation tank. It is explanatory drawing of cultivation tank sound. (A) is a perspective view of the hydroponic cultivation apparatus which is a state before cultivation tank sound generate | occur | produces. (B) is a perspective view of the hydroponic cultivation apparatus which is the state which the cultivation tank sound generate | occur | produced. It is explanatory drawing of cultivation tank sound. (A) is a perspective view of the hydroponic cultivation apparatus which is a state before cultivation tank sound generate | occur | produces. (B) is a perspective view of the hydroponic cultivation apparatus which is the state which the cultivation tank sound generate | occur | produced. It is a perspective view which shows the external appearance of the hydroponic cultivation apparatus of Example 2 of this invention. It is a fragmentary sectional view of the hydroponic cultivation apparatus which shows the water level change of the nutrient solution of Example 3 of this invention. It is explanatory drawing of cultivation tank sound. (A) is a perspective view of the hydroponic cultivation apparatus which is a state before cultivation tank sound generate | occur | produces. (B) is a perspective view of the hydroponic cultivation apparatus which is the state which the cultivation tank sound generate | occur | produced. (C) is a perspective view of the hydroponic cultivation apparatus which is the state which the cultivation tank sound generate | occur | produced. It is a perspective view which shows the external appearance of the hydroponic cultivation apparatus of Example 4 of this invention. It is a perspective view of the connection part of a cultivation tank. It is a perspective view of the connection part which shows the procedure which connects two cultivation tanks. It is a perspective view which shows the external appearance of the hydroponic cultivation apparatus of Example 5 of this invention. It is a perspective view of the connection part of a square type cultivation tank. It is a perspective view of the connection part which shows the procedure which connects two square cultivation tanks. It is a perspective view of the connection part which shows the procedure which isolate | separates two square cultivation tanks.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hydroponic cultivation apparatus 2 Plant 3 Nutrient solution 11 Cultivation tank 111 Bottom part 112 Side wall 113 Through-hole 113a Another through-hole 12 Inflow means 121 Inlet 13 Outlet means 131 Inlet port 132 Outlet port 133 Siphon part 133a Guide part 133b Outlet part 133c Top 14 Separate outflow means 141 Separate suction port 142 Separate discharge port 143 Separate siphon part 143a Separate guide part 143b Separate lead-out part 143c Separate top part 15 Support means

Claims (4)

A cultivation tank for storing a nutrient solution to be absorbed by the plant;
An inflow means for allowing the nutrient solution to flow into the cultivation tank;
Outflow means having an inlet for sucking the nutrient solution of the cultivation tank and an outlet for discharging the nutrient solution sucked from the inlet to the outside of the cultivation tank;
A separate outflow means having a separate suction port for sucking the nutrient solution of the cultivation tank and a separate discharge port for discharging the nutrient solution sucked from the separate suction port to the outside of the cultivation tank;
With
The cultivation tank has a supporting means for supporting the plant on the upper part thereof,
The outflow means, below said support means, connecting the outlet portion and the outlet portion extending substantially vertically extending guide引部extending substantially vertically way direction in the culture vessel with the culture vessel from said guide引部A siphon portion formed in an inverted U shape comprising a curved top,
The separate outflow means includes a separate guiding portion extending in a substantially vertical direction in the cultivation tank, a separate deriving portion extending in a substantially vertical direction in the cultivation tank, and a curved separate connecting the separate deriving portion from the separate guiding portion. And another siphon part formed in an inverted U shape consisting of a top part,
The inlet is arranged near the bottom in the cultivation tank,
The outlet is disposed outside the cultivation tank and below the siphon part ,
The height from the bottom of the cultivation tank to the separate inlet is different from the height from the bottom of the cultivation tank to the inlet,
The hydroponics apparatus characterized by the height from the bottom part of the said cultivation tank to the said another top part being substantially the same as the height from the bottom part of the said cultivation tank to the said top part . The siphon portion is elastic;
The hydroponic cultivation apparatus according to claim 1, wherein the outflow means slidably penetrates the bottom of the cultivation tank. The inside of the cultivation tank is a cylindrical shape extending in a substantially vertical direction,
The inflow means has an inflow port for allowing nutrient solution to flow into the cultivation tank,
The hydroponic cultivation apparatus according to claim 1 or 2 , wherein the inflow port is arranged in a substantially tangential direction of an inner wall of the cultivation tank. The hydroponic cultivation apparatus according to claim 3 , wherein the inflow port is disposed above a top of the siphon part.

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