JPH036201Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a liquid fertilizer tank for hydroponic cultivation, and specifically relates to a technique for improving the workability of a relatively long liquid fertilizer tank.

[Background technology]

Conventionally, liquid fertilizer tanks for hydroponic cultivation were constructed long in the direction perpendicular to the plane of the paper in Figure 1, and the cultivation bed was made of concrete, so the construction period was long and the cultivation bed It is not possible to easily change the tank capacity to cope with increases and decreases, and in addition, the alkali leached from the concrete is harmful to cultivation, so a synthetic resin overlay layer must be formed on the inner surface of the concrete tank. However, there were problems such as high costs.

[Purpose of invention]

This invention has a rational structure for the tank, which shortens the construction period, makes it easy to change the tank capacity, allows for stable installation, eliminates the overlay layer on the inner surface, and reduces costs. The purpose is to provide a liquid fertilizer tank for cultivation.

[Disclosure of invention]

The present invention has a substantially U-shaped cross section, with an engaging portion 1 formed at the right end in the length direction, and an engaging portion 1 at the left end.
A plurality of intermediate tank portions 3 made of synthetic resin are formed with engaged portions 2 that can be engaged with the intermediate tank portions 3, and a right end wall 4 is formed at the right end thereof with substantially the same cross-sectional shape as the intermediate tank portion 3. At the same time, there is an engaged part 2 on the left end.
One right end tank part 5 made of synthetic resin formed with
and one left end tank part 7 made of synthetic resin which has approximately the same cross-sectional shape as the intermediate tank part 3 and has a left end wall 6 at its left end and an engaging part 1 at its right end. The engaging part 1 and the engaged part 2 are arranged so as to overlap each other, and the sealing material 16 is interposed between the engaging part 1 and the engaged part 2. The present invention relates to a liquid fertilizer tank for hydroponic cultivation in which the above-mentioned objects are connected to each other.

Embodiments of the present invention will be described in detail below with reference to the drawings.

As shown in FIG. 2, the hydroponic cultivation device A has a large number of synthetic resin cultivation beds 9 installed on the left and right sides of a long liquid fertilizer tank 8 with a water gradient, and is operated by a pump 10.
The liquid fertilizer in the liquid fertilizer tank 8 can be circulated and supplied via piping 11, and this circulating liquid fertilizer enables hydroponic cultivation.

The liquid fertilizer tank 8 has a substantially U-shaped cross section, and its length can be easily changed depending on the number of cultivation beds 9. The configuration will be explained below.

As shown in Fig. 3, the intermediate tank part 3 is a molded product made of weather-resistant synthetic resin, and has a long vertical convex rib 12 formed at the bottom and a number of horizontal convex ribs 13 at intervals in the length direction. The book has been formed. A flange 14 is formed on the upper edge of the intermediate tank portion 3 over the entire length. Then, an engaging part 1 in the form of a recessed step is attached to the flange 1 at the right end of the intermediate tank part 3 in FIG. 3a.
4 is also included. 3rd part of intermediate tank part 3
An engaged portion 2 is formed at the left end in FIG. 3a, which is substantially flush with the bottom of the intermediate tank portion 3, and which can be inserted into and engaged with the engaging portion 1. Therefore, when the engaged part 2 is engaged with the engaging part 1 as shown in FIG.
The bottom portions 15, 15 of the bottom portions 15 are made substantially flush with each other. As shown in FIG. 4, the right end tank portion 5 is
It has substantially the same cross-sectional shape as the intermediate tank portion 3, and a right end wall 4 is formed in series at its right end. Vertical convex ribs 12 are formed on the bottom 15 and right end wall 4 of the right end tank portion 5. Further, a large number of horizontal convex ribs 13 are formed on the bottom portion 15 at intervals in the length direction. An engaged portion 2 is formed at the left end of the right end tank portion 5. Thus, the engaged portion 2 of the right end tank portion 5 is engaged with the engaging portion 2 of the intermediate tank portion 3 as shown in FIG. 6, so that the bottom portions 15, 15 of both are substantially flush with each other. There is. As shown in FIG. 5, the left end tank section 7 has substantially the same cross-sectional shape as the intermediate tank section 3, and has a left end wall 6 formed in series at its left end. Vertical convex ribs 12 are formed on the bottom 15 and left end wall 6 of the left end tank section 7. Further, a large number of horizontal convex ribs 13 are formed on the bottom portion 15 at intervals in the length direction. An engaging portion 1 is formed at the right end of the left end tank portion 7. Thus, the engaging part 1 of the left end tank part 7 is engaged with the engaged part 2 of the intermediate tank part 3 as shown in FIG. 6, so that the bottom parts 15, 15 of both are substantially flush. There is.

The engagement between the engaging part 1 and the engaged part 2 is achieved by arranging the engaging part 1 and the engaged part 2 so as to overlap each other, and placing a sealing material 16 between them, as shown in FIG. A rivet 18 consisting of a cylindrical body 20 and an insert body 21 press-fitted into the cylindrical body 20 is inserted into several through holes 17 formed at substantially the same positions in the engaging part 1 and the engaged part 2. That is, the cylinder 20 is inserted into the through hole 17, the insert body 21 is inserted into the cylinder 20, and the connection is made with mechanical strength, and then, such an engaging part is hidden. A synthetic resin overlay layer 19 is coated on the inner surface of the tank to achieve sealing. In this way, the engaging part 1 and the engaged part 2 are arranged so as to overlap each other, and the sealing material 16 is interposed between the engaging part 1 and the engaged part 2. By connecting the engaged portion 2, the connecting portion is connected in a state where the connection strength is improved by the overlapping engaging portion 1 and the engaged portion 2, In other words, by connecting the engaging part and the engaged part that are integrated with the tank in a superimposed manner, it is possible to eliminate the need for many other connecting members. It is possible to connect with improved strength while minimizing the number of parts.
In a liquid fertilizer tank for storing liquid fertilizer, the connection is made so that the watertightness of the connection part can be improved.

With this configuration, as shown in FIG.
By selecting the number of intermediate tank sections 3, the length and capacity of the liquid fertilizer tank 8 can be easily changed according to the scale of the cultivation bed 9.

The pipe 11 is connected to the intermediate tank section 3 and the left and right end tank sections 7 and 5 by being inserted into a hole 23 of a ring body 22 made of rubber, as shown in FIG.

The liquid fertilizer tank 8 configured as described above is buried in the soil, and the lid 24 is attached to the flange 14 with bolts or the like along its entire length. Soil gets into the back and creates an anchor effect, allowing liquid fertilizer tank 8
be installed stably.

[Effect of idea]

In summary, the present invention constructs a liquid fertilizer tank by joining an intermediate tank part made of synthetic resin, a right end tank part having a right end wall, and a left end tank part having a left end wall with a sealing property. The construction period can be shortened compared to conventional tanks, and the tank capacity and length can be easily changed by increasing or decreasing the intermediate tank section.Furthermore, since the tank section is made of synthetic resin, it can be compared to concrete tanks. It is advantageous that there is no need to take measures to prevent harmful components from leaching out, and costs can be reduced. Furthermore, each tank to be connected with sealing properties is arranged so that the engaging part and the engaged part formed at the end overlap each other, and a sealing material is placed between the engaging part and the engaged part. Since the connection is made with a By connecting the engaging part and the engaged part, which are integrated with the
In a liquid fertilizer tank that can be connected with improved strength while minimizing the number of connecting members, and in which liquid fertilizer is stored by interposing a sealing material,
The connection can be made with improved watertightness of the connection part.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a conventional example, Fig. 2 is a schematic plan view of a hydroponic cultivation device implementing the present invention, Fig. 3a,
b and c are a plan view, a partially broken front view, a partially broken side view, and Fig. 4a, of the same intermediate tank section;
b and c are a plan view of the right end tank portion of the same as above, a partially cutaway front view, a partially cutaway side view, and Fig. 5a,
b and c are a plan view, a partially broken front view, and a partially broken side view of the left end tank part of the same as above, Fig. 6 is a sectional view of the engagement part of the same as above, and Fig. 7 is a part of the liquid fertilizer tank of the same as above. FIG. 8 is a schematic plan sectional view with parts omitted, and FIG. 8 is a sectional view showing the connection structure of the same piping as above, 1 is an engaging part, 2 is an engaged part, 3 is an intermediate tank part, 4 is a right end wall, 5 1 is a right end tank portion, 6 is a left end wall, 7 is a left end tank portion, and 16 is a sealing material.

Claims (1)

[Scope of utility model registration request] A plurality of intermediate tank parts made of synthetic resin, each having a substantially U-shaped cross section and having an engaging part formed at the right end in the length direction and an engaged part which can be connected to the engaging part at the left end. and one right end tank section made of synthetic resin which has a cross-sectional shape substantially the same as that of the intermediate tank section and has a right end wall formed at its right end and an engaged portion at its left end; It is composed of one left end tank part made of synthetic resin, which has a cross-sectional shape, a left end wall is formed at the left end, and an engaging part is formed at the right end of the left end tank part, and the engaging part and the engaged part are overlapped. A liquid fertilizer tank for hydroponic cultivation, in which the engaging part and the engaged part are connected by interposing a sealing material between the engaging part and the engaged part.